db.json

[{"model": "core.problem", "pk": 15, "fields": {"code": "MIXGA", "name": "Mixi Game", "author": "allllekssssa", "contest_code": "COOK97B", "contest_name": "August Cook-Off 2018 Division 2", "contest_successful_submissions": 960, "contest_accuracy": 15.057332528666, "tags": "[\"cook-off\", \"cook97\", \"game-theory\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 16, "fields": {"code": "HACKFU", "name": "Hack Fulu", "author": "allllekssssa", "contest_code": "COOK97B", "contest_name": "August Cook-Off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"constructive\", \"cook-off\", \"cook97\", \"greedy\", \"median\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 17, "fields": {"code": "GUZAC", "name": "GukiZ and Candies", "author": "allllekssssa", "contest_code": "COOK97B", "contest_name": "August Cook-Off 2018 Division 2", "contest_successful_submissions": 144, "contest_accuracy": 6.6996402877698, "tags": "[\"cook-off\", \"cook97\", \"greedy\", \"math\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 18, "fields": {"code": "NQNF", "name": "No Queries No Fun", "author": "allllekssssa", "contest_code": "COOK97B", "contest_name": "August Cook-Off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"convex-hull-trick\", \"cook-off\", \"cook97\", \"medium-hard\", \"sqrt-decomp\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 19, "fields": {"code": "STTT", "name": "Standard Tree Task", "author": "allllekssssa", "contest_code": "COOK97B", "contest_name": "August Cook-Off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"bitmasking\", \"combinatorics\", \"cook-off\", \"cook97\", \"dynamic-programming\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 20, "fields": {"code": "BFTT", "name": "Balsa For The Three", "author": "allllekssssa", "contest_code": "COOK97B", "contest_name": "August Cook-Off 2018 Division 2", "contest_successful_submissions": 1164, "contest_accuracy": 25.688263299524, "tags": "[\"bruteforce\", \"cook-off\", \"cook97\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 21, "fields": {"code": "F2NDMAX", "name": "Finding Second Maximum", "author": "kingofnumbers", "contest_code": "COOK96B", "contest_name": "July Cook-Off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook96\", \"graph-theory\", \"implementation\"]"}}, {"model": "core.problem", "pk": 22, "fields": {"code": "ORMATRIX", "name": "OR Matrix", "author": "kingofnumbers", "contest_code": "COOK96B", "contest_name": "July Cook-Off 2018 Division 2", "contest_successful_submissions": 811, "contest_accuracy": 29.833585476551, "tags": "[\"array\", \"cook96\", \"implementation\", \"simple\"]"}}, {"model": "core.problem", "pk": 23, "fields": {"code": "ENCMSG", "name": "Encoding Message", "author": "kingofnumbers", "contest_code": "COOK96B", "contest_name": "July Cook-Off 2018 Division 2", "contest_successful_submissions": 2204, "contest_accuracy": 60.047974413646, "tags": "[\"cook96\", \"implementation\", \"string\"]"}}, {"model": "core.problem", "pk": 24, "fields": {"code": "STICKS2", "name": "Sticks", "author": "kingofnumbers", "contest_code": "COOK96B", "contest_name": "July Cook-Off 2018 Division 2", "contest_successful_submissions": 2, "contest_accuracy": 0.28735632183908, "tags": "[\"binary-search\", \"cook96\", \"implementation\", \"logic\"]"}}, {"model": "core.problem", "pk": 25, "fields": {"code": "CHAQOT", "name": "Chef and Queries on a Tree", "author": "kefaa", "contest_code": "COOK96B", "contest_name": "July Cook-Off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook86\", \"dynamic-programming\", \"hard\", \"lca\", \"persistence\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 26, "fields": {"code": "CHGCDG", "name": "Chef and GCD Game ", "author": "kefaa", "contest_code": "COOK96B", "contest_name": "July Cook-Off 2018 Division 2", "contest_successful_submissions": 29, "contest_accuracy": 10.862619808307, "tags": "[\"cook96\", \"gcd\", \"implementation\", \"math\", \"pre-process\", \"sieve\"]"}}, {"model": "core.problem", "pk": 27, "fields": {"code": "SONYASEG", "name": "Sonya and Segments", "author": "barenuz", "contest_code": "COOK95B", "contest_name": "June Cook-Off 2018 Division 2", "contest_successful_submissions": 8, "contest_accuracy": 3.5714285714286, "tags": "[\"combinatorics\", \"cook95\", \"easy\", \"geometry\", \"line\", \"looping\"]"}}, {"model": "core.problem", "pk": 28, "fields": {"code": "DANYANUM", "name": "Danya and Numbers", "author": "barenuz", "contest_code": "COOK95B", "contest_name": "June Cook-Off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook95\", \"dp+bitmask\", \"med-hard\", \"sqrt-decomp\"]"}}, {"model": "core.problem", "pk": 29, "fields": {"code": "MINIONS", "name": "Masha and Minions", "author": "barenuz", "contest_code": "COOK95B", "contest_name": "June Cook-Off 2018 Division 2", "contest_successful_submissions": 13, "contest_accuracy": 1.7832647462277, "tags": "[\"cook95\", \"medium\", \"mgch\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 30, "fields": {"code": "BTMNTREE", "name": "Batman and Tree", "author": "barenuz", "contest_code": "COOK95B", "contest_name": "June Cook-Off 2018 Division 2", "contest_successful_submissions": 1, "contest_accuracy": 20.0, "tags": "[\"cook95\", \"dynamic-programming\", \"hard\", \"lazypropagation\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 31, "fields": {"code": "NUMCOMP", "name": "Archi and Comparsion", "author": "barenuz", "contest_code": "COOK95B", "contest_name": "June Cook-Off 2018 Division 2", "contest_successful_submissions": 1833, "contest_accuracy": 16.928352282981, "tags": "[\"cakewalk\", \"conditions\", \"cook95\", \"math\"]"}}, {"model": "core.problem", "pk": 32, "fields": {"code": "GOODPERM", "name": "Good Permutations", "author": "barenuz", "contest_code": "COOK95B", "contest_name": "June Cook-Off 2018 Division 2", "contest_successful_submissions": 481, "contest_accuracy": 27.986348122867, "tags": "[\"brute-force\", \"cook95\", \"permutation\", \"simple\"]"}}, {"model": "core.problem", "pk": 33, "fields": {"code": "CHEFLAKE", "name": "Searching for the Recipe", "author": "hloya_ygrt", "contest_code": "COOK94B", "contest_name": "May Cook-off 2018 Division 2", "contest_successful_submissions": 2, "contest_accuracy": 2.5641025641026, "tags": "[\"cook94\", \"dynamic-programming\", \"prefix-sum\"]"}}, {"model": "core.problem", "pk": 34, "fields": {"code": "KMXOR", "name": "Best Cake Ever", "author": "hloya_ygrt", "contest_code": "COOK94B", "contest_name": "May Cook-off 2018 Division 2", "contest_successful_submissions": 309, "contest_accuracy": 8.6673889490791, "tags": "[\"constructive\", \"cook94\", \"xor\"]"}}, {"model": "core.problem", "pk": 35, "fields": {"code": "CHEFLMN", "name": "Delivery Problems", "author": "hloya_ygrt", "contest_code": "COOK94B", "contest_name": "May Cook-off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook94\", \"dynamic-programming\", \"modular-arith\"]"}}, {"model": "core.problem", "pk": 36, "fields": {"code": "CHEFTRVL", "name": "Difficult Choice", "author": "hloya_ygrt", "contest_code": "COOK94B", "contest_name": "May Cook-off 2018 Division 2", "contest_successful_submissions": 20, "contest_accuracy": 11.731843575419, "tags": "[\"cook94\", \"xor\"]"}}, {"model": "core.problem", "pk": 37, "fields": {"code": "CHEFRUN", "name": "Secret Recipe", "author": "hloya_ygrt", "contest_code": "COOK94B", "contest_name": "May Cook-off 2018 Division 2", "contest_successful_submissions": 2407, "contest_accuracy": 53.846153846154, "tags": "[]"}}, {"model": "core.problem", "pk": 38, "fields": {"code": "CHEFPIC", "name": "Picnic with Chef", "author": "hloya_ygrt", "contest_code": "COOK94B", "contest_name": "May Cook-off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"binary-search\", \"bit\", \"cook94\", \"geometry\", \"scanline\", \"squares\"]"}}, {"model": "core.problem", "pk": 39, "fields": {"code": "PWNCHESS", "name": "Pawn Chess", "author": "alei", "contest_code": "COOK93B", "contest_name": "April Cook-off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook93\", \"game-theory\", \"games\", \"medium\"]"}}, {"model": "core.problem", "pk": 40, "fields": {"code": "CHEFGORO", "name": "Chef Goro", "author": "alei", "contest_code": "COOK93B", "contest_name": "April Cook-off 2018 Division 2", "contest_successful_submissions": 3, "contest_accuracy": 42.857142857143, "tags": "[\"bitmask\", \"cook93\", \"medium-hard\", \"precomputation\", \"topology\"]"}}, {"model": "core.problem", "pk": 41, "fields": {"code": "CUTBOARD", "name": "Cut the Board", "author": "alei", "contest_code": "COOK93B", "contest_name": "April Cook-off 2018 Division 2", "contest_successful_submissions": 1147, "contest_accuracy": 77.579365079365, "tags": "[\"cakewalk\", \"chess\", \"cook93\"]"}}, {"model": "core.problem", "pk": 42, "fields": {"code": "BINIM", "name": "Binary Nim", "author": "alei", "contest_code": "COOK93B", "contest_name": "April Cook-off 2018 Division 2", "contest_successful_submissions": 368, "contest_accuracy": 20.19282271023, "tags": "[\"combinatorial\", \"cook93\", \"game\", \"game-theory\", \"greedy\", \"nim\"]"}}, {"model": "core.problem", "pk": 43, "fields": {"code": "RUNDIR", "name": "Run Direction", "author": "alei", "contest_code": "COOK93B", "contest_name": "April Cook-off 2018 Division 2", "contest_successful_submissions": 14, "contest_accuracy": 2.6041666666667, "tags": "[\"binary-search\", \"cook93\", \"easy-medium\", \"greedy\"]"}}, {"model": "core.problem", "pk": 44, "fields": {"code": "HAMEL", "name": "Hamel Paths", "author": "alei", "contest_code": "COOK93B", "contest_name": "April Cook-off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"augmenting-path\", \"cook93\", \"euler-tour\", \"hard\", \"matroid-partition\", \"spanningtree\"]"}}, {"model": "core.problem", "pk": 45, "fields": {"code": "CO92MATR", "name": "Chef Restores a Matrix", "author": "kefaa", "contest_code": "COOK92B", "contest_name": "March Cook-off 2018 Division 2", "contest_successful_submissions": 805, "contest_accuracy": 23.51598173516, "tags": "[\"cook92\", \"easy\", \"implementation\"]"}}, {"model": "core.problem", "pk": 46, "fields": {"code": "CO92JUDG", "name": "Chef Judges a Competition", "author": "kefaa", "contest_code": "COOK92B", "contest_name": "March Cook-off 2018 Division 2", "contest_successful_submissions": 2934, "contest_accuracy": 61.325966850829, "tags": "[\"cakewalk\", \"cook92\", \"implementation\"]"}}, {"model": "core.problem", "pk": 47, "fields": {"code": "CO92TREE", "name": "Chef Chooses a Subset", "author": "kefaa", "contest_code": "COOK92B", "contest_name": "March Cook-off 2018 Division 2", "contest_successful_submissions": 1, "contest_accuracy": 1.4492753623188, "tags": "[\"bruteforce\", \"cook92\", \"dfs\", \"medium\", \"tree\"]"}}, {"model": "core.problem", "pk": 48, "fields": {"code": "CO92REST", "name": "Chef Restores an Array", "author": "kefaa", "contest_code": "COOK92B", "contest_name": "March Cook-off 2018 Division 2", "contest_successful_submissions": 9, "contest_accuracy": 6.7164179104478, "tags": "[\"cook92\", \"datastructure\", \"easy-medium\"]"}}, {"model": "core.problem", "pk": 49, "fields": {"code": "CO92SUBW", "name": "Chef Goes to the Cinema", "author": "kefaa", "contest_code": "COOK92B", "contest_name": "March Cook-off 2018 Division 2", "contest_successful_submissions": 1686, "contest_accuracy": 47.135487374423, "tags": "[\"cook92\", \"easy\", \"implementation\"]"}}, {"model": "core.problem", "pk": 50, "fields": {"code": "MXPATH", "name": "Maximum Tree Path", "author": "chemthan", "contest_code": "COOK92B", "contest_name": "March Cook-off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook92\", \"datastructure\", \"medium-hard\", \"tree\"]"}}, {"model": "core.problem", "pk": 51, "fields": {"code": "CCOOK", "name": "Chef and Cook-Off", "author": "mgch", "contest_code": "COOK91", "contest_name": "February Cook-Off 2018", "contest_successful_submissions": 3290, "contest_accuracy": 62.861915367483, "tags": "[\"cakewalk\", \"conditions\", \"cook91\", \"loops\"]"}}, {"model": "core.problem", "pk": 52, "fields": {"code": "CTHREE", "name": "Chef and Tuples", "author": "mgch", "contest_code": "COOK91", "contest_name": "February Cook-Off 2018", "contest_successful_submissions": 743, "contest_accuracy": 28.576835730507, "tags": "[]"}}, {"model": "core.problem", "pk": 53, "fields": {"code": "CSUBSEQ", "name": "Chef and Chefness", "author": "mgch", "contest_code": "COOK91", "contest_name": "February Cook-Off 2018", "contest_successful_submissions": 62, "contest_accuracy": 28.571428571429, "tags": "[\"cook91\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 54, "fields": {"code": "CARRAY", "name": "Chef and Line", "author": "mgch", "contest_code": "COOK91", "contest_name": "February Cook-Off 2018", "contest_successful_submissions": 604, "contest_accuracy": 20.95010252905, "tags": "[\"cook91\", \"greedy\", \"simple\", \"sorting\"]"}}, {"model": "core.problem", "pk": 55, "fields": {"code": "CTREE", "name": "Chef and Chefcoin", "author": "mgch", "contest_code": "COOK91", "contest_name": "February Cook-Off 2018", "contest_successful_submissions": 3, "contest_accuracy": 11.111111111111, "tags": "[\"cook91\", \"data-structure\", \"dfs\", \"graph-theory\", \"hard\", \"tree\"]"}}, {"model": "core.problem", "pk": 56, "fields": {"code": "FINDA", "name": "Finding the matrix", "author": "sidhant007", "contest_code": "COOK90", "contest_name": "January Cook-Off 2018", "contest_successful_submissions": 24, "contest_accuracy": 19.2, "tags": "[\"bipartite\", \"constructive\", \"cook90\", \"maths\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 57, "fields": {"code": "MAGA", "name": "Make array great again", "author": "sidhant007", "contest_code": "COOK90", "contest_name": "January Cook-Off 2018", "contest_successful_submissions": 85, "contest_accuracy": 12.801204819277, "tags": "[\"cook90\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 58, "fields": {"code": "MULTHREE", "name": "Multiple of 3", "author": "sidhant007", "contest_code": "COOK90", "contest_name": "January Cook-Off 2018", "contest_successful_submissions": 779, "contest_accuracy": 14.865885908576, "tags": "[\"cook90\", \"easy\", \"maths\", \"modulo\"]"}}, {"model": "core.problem", "pk": 59, "fields": {"code": "FARGRAPH", "name": "Far Graphs", "author": "admin3", "contest_code": "COOK90", "contest_name": "January Cook-Off 2018", "contest_successful_submissions": 1, "contest_accuracy": 10.0, "tags": "[\"cook90\", \"graph-theory\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 60, "fields": {"code": "SURVIVE", "name": "Survive in ChocoLand", "author": "sidhant007", "contest_code": "COOK90", "contest_name": "January Cook-Off 2018", "contest_successful_submissions": 1673, "contest_accuracy": 18.284545845889, "tags": "[\"cook90\", \"easy\", \"greedy\"]"}}, {"model": "core.problem", "pk": 61, "fields": {"code": "ROTPTS", "name": "Rotate Point", "author": "chemthan", "contest_code": "COOK89", "contest_name": "December Cook-Off 2017", "contest_successful_submissions": 27, "contest_accuracy": 14.516129032258, "tags": "[\"chemthan\", \"cook89\", \"likecs\", \"matrix-mul\", \"medium\", \"sqrt-decomp\"]"}}, {"model": "core.problem", "pk": 62, "fields": {"code": "ISOARRAY", "name": "Chef and Isomorphic Array", "author": "chemthan", "contest_code": "COOK89", "contest_name": "December Cook-Off 2017", "contest_successful_submissions": 3, "contest_accuracy": 3.921568627451, "tags": "[\"chemthan\", \"cook89\", \"hashing\", \"likecs\", \"medium-hard\", \"sqrt-decomp\"]"}}, {"model": "core.problem", "pk": 63, "fields": {"code": "MINSUBAR", "name": "Minimum SubArray", "author": "chemthan", "contest_code": "COOK89", "contest_name": "December Cook-Off 2017", "contest_successful_submissions": 155, "contest_accuracy": 4.7761194029851, "tags": "[\"binary-search\", \"chemthan\", \"cook89\", \"easy-medium\", \"likecs\", \"prefix-sum\"]"}}, {"model": "core.problem", "pk": 64, "fields": {"code": "BTAR", "name": "Beautiful Array", "author": "chemthan", "contest_code": "COOK89", "contest_name": "December Cook-Off 2017", "contest_successful_submissions": 845, "contest_accuracy": 17.015759026531, "tags": "[\"chemthan\", \"cook89\", \"easy\", \"greedy\", \"likecs\"]"}}, {"model": "core.problem", "pk": 65, "fields": {"code": "FBMT", "name": "Football Match", "author": "chemthan", "contest_code": "COOK89", "contest_name": "December Cook-Off 2017", "contest_successful_submissions": 1849, "contest_accuracy": 26.685633001422, "tags": "[\"cakewalk\", \"chemthan\", \"cook89\", \"likecs\", \"looping\"]"}}, {"model": "core.problem", "pk": 66, "fields": {"code": "PALHAM", "name": "Hasan and boring classes", "author": "kingofnumbers", "contest_code": "COOK88", "contest_name": "November Cook-Off 2017", "contest_successful_submissions": 31, "contest_accuracy": 11.742424242424, "tags": "[\"combinatorics\", \"cook88\", \"kingofnumbers\", \"likecs\", \"medium\"]"}}, {"model": "core.problem", "pk": 67, "fields": {"code": "SKIING", "name": "Skiing", "author": "kingofnumbers", "contest_code": "COOK88", "contest_name": "November Cook-Off 2017", "contest_successful_submissions": 295, "contest_accuracy": 26.436781609195, "tags": "[\"cook88\", \"greedy\", \"kingofnumbers\", \"likecs\", \"scc\", \"sorting\"]"}}, {"model": "core.problem", "pk": 68, "fields": {"code": "ONCHESS", "name": "Online Chess", "author": "kingofnumbers", "contest_code": "COOK88", "contest_name": "November Cook-Off 2017", "contest_successful_submissions": 625, "contest_accuracy": 42.150968603874, "tags": "[\"cook88\", \"easy\", \"kingofnumbers\", \"likecs\", \"looping\"]"}}, {"model": "core.problem", "pk": 69, "fields": {"code": "ADJLEAF", "name": "Adjacent leaves", "author": "kingofnumbers", "contest_code": "COOK88", "contest_name": "November Cook-Off 2017", "contest_successful_submissions": 2, "contest_accuracy": 4.8780487804878, "tags": "[\"cook88\", \"dynamic-programming\", \"hard\"]"}}, {"model": "core.problem", "pk": 70, "fields": {"code": "RNDPAIR", "name": "Random Pair", "author": "kingofnumbers", "contest_code": "COOK88", "contest_name": "November Cook-Off 2017", "contest_successful_submissions": 1502, "contest_accuracy": 52.339986235375, "tags": "[\"cakewalk\", \"cook88\", \"kingofnumbers\", \"likecs\", \"probability\"]"}}, {"model": "core.problem", "pk": 71, "fields": {"code": "CK87GSUB", "name": "Chef and Counting Test", "author": "mhammad1", "contest_code": "COOK87", "contest_name": "October Cook-Off 2017", "contest_successful_submissions": 785, "contest_accuracy": 17.74641864443, "tags": "[\"combinatorics\", \"cook87\", \"counting\", \"easy\"]"}}, {"model": "core.problem", "pk": 72, "fields": {"code": "CK87MEDI", "name": "Chef and Employment Test", "author": "saeed_sryhini", "contest_code": "COOK87", "contest_name": "October Cook-Off 2017", "contest_successful_submissions": 2850, "contest_accuracy": 66.567670767925, "tags": "[\"cakewalk\", \"cook87\", \"median\", \"sorting\"]"}}, {"model": "core.problem", "pk": 73, "fields": {"code": "CK87QUER", "name": "Chef and Weird Queries", "author": "saeed_sryhini", "contest_code": "COOK87", "contest_name": "October Cook-Off 2017", "contest_successful_submissions": 1698, "contest_accuracy": 35.120014437827, "tags": "[\"cook87\", \"mhammad1\", \"simple\", \"sorting\", \"two-pointers\"]"}}, {"model": "core.problem", "pk": 74, "fields": {"code": "CK87DANC", "name": "Chef and Dancing Steps", "author": "saeed_sryhini", "contest_code": "COOK87", "contest_name": "October Cook-Off 2017", "contest_successful_submissions": 43, "contest_accuracy": 16.058394160584, "tags": "[]"}}, {"model": "core.problem", "pk": 75, "fields": {"code": "CK87MEAD", "name": "Chef and Math Test", "author": "mhammad1", "contest_code": "COOK87", "contest_name": "October Cook-Off 2017", "contest_successful_submissions": 4, "contest_accuracy": 17.391304347826, "tags": "[\"centroid-decomp\", \"cook87\", \"fenwick-tree\", \"line-sweep\", \"medium-hard\", \"mhammad1\"]"}}, {"model": "core.problem", "pk": 76, "fields": {"code": "LIKECS04", "name": "Numbers Game", "author": "likecs", "contest_code": "COOK86", "contest_name": "September Cook-Off 2017", "contest_successful_submissions": 32, "contest_accuracy": 10.702341137124, "tags": "[\"cook86\", \"dynamic-programming\", \"invariants\", \"likecs\", \"medium\"]"}}, {"model": "core.problem", "pk": 77, "fields": {"code": "LIKECS03", "name": "Infinite OR Game", "author": "likecs", "contest_code": "COOK86", "contest_name": "September Cook-Off 2017", "contest_successful_submissions": 565, "contest_accuracy": 33.391812865497, "tags": "[\"bitwise\", \"cook86\", \"easy-medium\", \"greedy\", \"likecs\"]"}}, {"model": "core.problem", "pk": 78, "fields": {"code": "LIKECS02", "name": "Statistics Construction", "author": "likecs", "contest_code": "COOK86", "contest_name": "September Cook-Off 2017", "contest_successful_submissions": 1531, "contest_accuracy": 45.579223810913, "tags": "[\"construction\", \"cook86\", \"easy\", \"likecs\"]"}}, {"model": "core.problem", "pk": 79, "fields": {"code": "LIKECS01", "name": "Subsequence Equality", "author": "likecs", "contest_code": "COOK86", "contest_name": "September Cook-Off 2017", "contest_successful_submissions": 2473, "contest_accuracy": 40.567983499921, "tags": "[\"cakewalk\", \"cook86\", \"likecs\"]"}}, {"model": "core.problem", "pk": 80, "fields": {"code": "LIKECS05", "name": "Mixing Colors", "author": "likecs", "contest_code": "COOK86", "contest_name": "September Cook-Off 2017", "contest_successful_submissions": 17, "contest_accuracy": 5.0445103857567, "tags": "[\"cook86\", \"fft\", \"inclusn-exclusn\", \"likecs\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 81, "fields": {"code": "ELEVSTRS", "name": "From heaven to earth", "author": "melnik", "contest_code": "COOK85", "contest_name": "August Cook-Off 2017", "contest_successful_submissions": 3519, "contest_accuracy": 54.468214231528, "tags": "[\"cakewalk\", \"cook85\", \"math\"]"}}, {"model": "core.problem", "pk": 82, "fields": {"code": "GAMSTICK", "name": "Game on Stick", "author": "melnik", "contest_code": "COOK85", "contest_name": "August Cook-Off 2017", "contest_successful_submissions": 44, "contest_accuracy": 4.1785375118708, "tags": "[\"cook85\", \"game\", \"medium\"]"}}, {"model": "core.problem", "pk": 83, "fields": {"code": "MTRXMOD", "name": "Matrix and Chef", "author": "melnik", "contest_code": "COOK85", "contest_name": "August Cook-Off 2017", "contest_successful_submissions": 193, "contest_accuracy": 13.196286472149, "tags": "[\"cook85\", \"math\", \"simple\"]"}}, {"model": "core.problem", "pk": 84, "fields": {"code": "OBTTRNGL", "name": "Real obtuse", "author": "melnik", "contest_code": "COOK85", "contest_name": "August Cook-Off 2017", "contest_successful_submissions": 1737, "contest_accuracy": 19.206008583691, "tags": "[\"cook85\", \"easy\", \"math\"]"}}, {"model": "core.problem", "pk": 85, "fields": {"code": "TRCNTCT", "name": "Tree Connectivity", "author": "melnik", "contest_code": "COOK85", "contest_name": "August Cook-Off 2017", "contest_successful_submissions": 15, "contest_accuracy": 13.513513513514, "tags": "[\"cook85\", \"dfs\", \"divide-and-conq\", \"hard\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 86, "fields": {"code": "CHNGFUNC", "name": "Chang and the Perfect Function", "author": "prateekg603", "contest_code": "COOK84", "contest_name": "July Cook-Off 2017", "contest_successful_submissions": 1262, "contest_accuracy": 24.45179255134, "tags": "[\"cook84\", \"easy-medium\", \"maths\", \"number-theory\"]"}}, {"model": "core.problem", "pk": 87, "fields": {"code": "CHNGOR", "name": "Chang and Bitwise OR", "author": "prateekg603", "contest_code": "COOK84", "contest_name": "July Cook-Off 2017", "contest_successful_submissions": 1668, "contest_accuracy": 46.916299559471, "tags": "[\"cook84\", \"easy\"]"}}, {"model": "core.problem", "pk": 88, "fields": {"code": "CHNGSEQ", "name": "Chang and Beautiful Sequences", "author": "prateekg603", "contest_code": "COOK84", "contest_name": "July Cook-Off 2017", "contest_successful_submissions": 17, "contest_accuracy": 41.463414634146, "tags": "[\"bit\", \"combinatorics\", \"cook84\", \"hard\", \"math\"]"}}, {"model": "core.problem", "pk": 89, "fields": {"code": "CHNGSUM", "name": "Chang and Perfect Quadruples", "author": "prateekg603", "contest_code": "COOK84", "contest_name": "July Cook-Off 2017", "contest_successful_submissions": 174, "contest_accuracy": 17.017208413002, "tags": "[\"cook84\", \"medium\"]"}}, {"model": "core.problem", "pk": 90, "fields": {"code": "BIPARTRE", "name": "Bipartite Graph from Trees", "author": "admin3", "contest_code": "COOK84", "contest_name": "July Cook-Off 2017", "contest_successful_submissions": 62, "contest_accuracy": 30.243902439024, "tags": "[\"cook84\", \"max\", \"maxflow\", \"medium\", \"vivek1_007\"]"}}, {"model": "core.problem", "pk": 91, "fields": {"code": "CENTREE", "name": "Centeroid", "author": "alei", "contest_code": "COOK83", "contest_name": "June Cook-Off 2017", "contest_successful_submissions": 169, "contest_accuracy": 19.256756756757, "tags": "[\"ad-hoc\", \"constructive\", \"cook83\", \"graph\", \"tree\"]"}}, {"model": "core.problem", "pk": 92, "fields": {"code": "KNICOV", "name": "Knight Covering", "author": "alei", "contest_code": "COOK83", "contest_name": "June Cook-Off 2017", "contest_successful_submissions": 68, "contest_accuracy": 5.119825708061, "tags": "[\"bitmasks\", \"cook83\", \"dynamic-programming\", \"easy-medium\"]"}}, {"model": "core.problem", "pk": 93, "fields": {"code": "SNACKUP", "name": "SnackUp", "author": "alei", "contest_code": "COOK83", "contest_name": "June Cook-Off 2017", "contest_successful_submissions": 1194, "contest_accuracy": 52.647438656909, "tags": "[\"ad-hoc\", \"constructive\", \"cook83\", \"easy\"]"}}, {"model": "core.problem", "pk": 94, "fields": {"code": "ADADET", "name": "A Study in Bake Street", "author": "alei", "contest_code": "COOK83", "contest_name": "June Cook-Off 2017", "contest_successful_submissions": 24, "contest_accuracy": 7.5709779179811, "tags": "[\"convex\", \"cook83\", \"geometry\", \"hull\", \"medium\", \"stack\"]"}}, {"model": "core.problem", "pk": 95, "fields": {"code": "ADACRA", "name": "Ada and crayons", "author": "alei", "contest_code": "COOK83", "contest_name": "June Cook-Off 2017", "contest_successful_submissions": 2143, "contest_accuracy": 52.694174757282, "tags": "[\"cakewalk\", \"cook83\"]"}}, {"model": "core.problem", "pk": 96, "fields": {"code": "COOK82A", "name": "La Liga", "author": "deadwing97", "contest_code": "COOK82", "contest_name": "May Cook-Off 2017", "contest_successful_submissions": 1075, "contest_accuracy": 70.999346832136, "tags": "[\"cakewalk\", \"cook82\"]"}}, {"model": "core.problem", "pk": 97, "fields": {"code": "COOK82B", "name": "Balanced Array", "author": "deadwing97", "contest_code": "COOK82", "contest_name": "May Cook-Off 2017", "contest_successful_submissions": 221, "contest_accuracy": 20.423183072677, "tags": "[\"cook82\", \"easy\", \"prime-factorization\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 98, "fields": {"code": "COOK82C", "name": "Hussain Set", "author": "deadwing97", "contest_code": "COOK82", "contest_name": "May Cook-Off 2017", "contest_successful_submissions": 34, "contest_accuracy": 4.2553191489362, "tags": "[\"cook82\", \"easy-medium\", \"queue\"]"}}, {"model": "core.problem", "pk": 99, "fields": {"code": "COOK82D", "name": "Nasty Queries", "author": "deadwing97", "contest_code": "COOK82", "contest_name": "May Cook-Off 2017", "contest_successful_submissions": 54, "contest_accuracy": 16.463414634146, "tags": "[\"cook82\", \"euler-tour\", \"hashing\", \"medium\"]"}}, {"model": "core.problem", "pk": 100, "fields": {"code": "COOK82E", "name": "Binary Tree", "author": "deadwing97", "contest_code": "COOK82", "contest_name": "May Cook-Off 2017", "contest_successful_submissions": 5, "contest_accuracy": 16.666666666667, "tags": "[]"}}, {"model": "core.problem", "pk": 101, "fields": {"code": "XORSUMS", "name": "Bear and Xor of Sums", "author": "errichto", "contest_code": "COOK81", "contest_name": "April Cook-Off 2017", "contest_successful_submissions": 7, "contest_accuracy": 1.1844331641286, "tags": "[\"cook81\", \"medium\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 102, "fields": {"code": "BESTTRI", "name": "Best Triangle", "author": "kingofnumbers", "contest_code": "COOK81", "contest_name": "April Cook-Off 2017", "contest_successful_submissions": 1, "contest_accuracy": 1.1904761904762, "tags": "[\"cook81\", \"geometry\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 103, "fields": {"code": "SHOPTRIP", "name": "Bear and Shop Trip", "author": "errichto", "contest_code": "COOK81", "contest_name": "April Cook-Off 2017", "contest_successful_submissions": 73, "contest_accuracy": 35.071090047393, "tags": "[\"cook81\", \"dp+bitmask\", \"easy\"]"}}, {"model": "core.problem", "pk": 104, "fields": {"code": "CANDY123", "name": "Bear and Candies 123", "author": "errichto", "contest_code": "COOK81", "contest_name": "April Cook-Off 2017", "contest_successful_submissions": 1384, "contest_accuracy": 72.131147540984, "tags": "[\"cakewalk\", \"cook81\"]"}}, {"model": "core.problem", "pk": 105, "fields": {"code": "ABREPEAT", "name": "Bear and AB", "author": "errichto", "contest_code": "COOK81", "contest_name": "April Cook-Off 2017", "contest_successful_submissions": 568, "contest_accuracy": 33.757961783439, "tags": "[\"combinatorics\", \"cook81\", \"simple\"]"}}, {"model": "core.problem", "pk": 106, "fields": {"code": "ROBOTG", "name": "Safe Robot", "author": "lg5293", "contest_code": "COOK80", "contest_name": "March Cook-Off 2017", "contest_successful_submissions": 1040, "contest_accuracy": 27.829698857736, "tags": "[\"bruteforce\", \"cook80\", \"easy\", \"string\"]"}}, {"model": "core.problem", "pk": 107, "fields": {"code": "INCXOR", "name": "Increasing Xor Sequence", "author": "lg5293", "contest_code": "COOK80", "contest_name": "March Cook-Off 2017", "contest_successful_submissions": 37, "contest_accuracy": 71.698113207547, "tags": "[\"bitmasks\", \"cook80\", \"digit-dp\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 108, "fields": {"code": "CARDS777", "name": "Yet Another Card Game", "author": "lg5293", "contest_code": "COOK80", "contest_name": "March Cook-Off 2017", "contest_successful_submissions": 219, "contest_accuracy": 49.775784753363, "tags": "[\"cook80\", \"expected-value\", \"medium\"]"}}, {"model": "core.problem", "pk": 109, "fields": {"code": "MEETUP", "name": "Meeting location", "author": "lg5293", "contest_code": "COOK80", "contest_name": "March Cook-Off 2017", "contest_successful_submissions": 10, "contest_accuracy": 20.0, "tags": "[\"cook80\", \"divide-and-conq\", \"hard\", \"interactive\"]"}}, {"model": "core.problem", "pk": 110, "fields": {"code": "RAINBOW", "name": "Rainbow Graph", "author": "lg5293", "contest_code": "COOK80", "contest_name": "March Cook-Off 2017", "contest_successful_submissions": 264, "contest_accuracy": 55.439330543933, "tags": "[\"cook80\", \"easy-medium\", \"graph\", \"greedy\"]"}}, {"model": "core.problem", "pk": 111, "fields": {"code": "DWNLD", "name": "Download file", "author": "kingofnumbers", "contest_code": "COOK79", "contest_name": "February Cook-Off 2017", "contest_successful_submissions": 1246, "contest_accuracy": 55.721174923279, "tags": "[\"cakewalk\", \"cook79\"]"}}, {"model": "core.problem", "pk": 112, "fields": {"code": "ADDMULT", "name": "To add or to multiply game", "author": "kingofnumbers", "contest_code": "COOK79", "contest_name": "February Cook-Off 2017", "contest_successful_submissions": 21, "contest_accuracy": 9.1304347826087, "tags": "[\"ad-hoc\", \"cook79\", \"game-theory\", \"medium\"]"}}, {"model": "core.problem", "pk": 113, "fields": {"code": "MIXFLVOR", "name": "Mixing flavors", "author": "kingofnumbers", "contest_code": "COOK79", "contest_name": "February Cook-Off 2017", "contest_successful_submissions": 11, "contest_accuracy": 25.581395348837, "tags": "[\"cook79\", \"gauss-elim\", \"medium-hard\", \"two-pointers\"]"}}, {"model": "core.problem", "pk": 114, "fields": {"code": "CHAIRS", "name": "Chairs", "author": "kingofnumbers", "contest_code": "COOK79", "contest_name": "February Cook-Off 2017", "contest_successful_submissions": 230, "contest_accuracy": 19.039869812856, "tags": "[\"cook79\", \"simple\"]"}}, {"model": "core.problem", "pk": 115, "fields": {"code": "COOKGAME", "name": "Cooking Game", "author": "kingofnumbers", "contest_code": "COOK79", "contest_name": "February Cook-Off 2017", "contest_successful_submissions": 101, "contest_accuracy": 10.607621009269, "tags": "[\"combinatorics\", \"cook79\", \"easy-medium\"]"}}, {"model": "core.problem", "pk": 116, "fields": {"code": "DIGITLIS", "name": "Digit Longest Increasing Subsequences", "author": "alex_2oo8", "contest_code": "COOK78", "contest_name": "January Cook-Off 2017", "contest_successful_submissions": 14, "contest_accuracy": 6.2222222222222, "tags": "[\"cook78\", \"dp+bitmask\", \"easy-medium\", \"lis\"]"}}, {"model": "core.problem", "pk": 117, "fields": {"code": "XRGRD", "name": "Xor Grid", "author": "alex_2oo8", "contest_code": "COOK78", "contest_name": "January Cook-Off 2017", "contest_successful_submissions": 3, "contest_accuracy": 3.0612244897959, "tags": "[\"bitwise-operatn\", \"cook78\", \"easy-medium\", \"fractals\", \"maths\"]"}}, {"model": "core.problem", "pk": 118, "fields": {"code": "MTRNSFRM", "name": "Matrix Transformation", "author": "alex_2oo8", "contest_code": "COOK78", "contest_name": "January Cook-Off 2017", "contest_successful_submissions": 23, "contest_accuracy": 11.165048543689, "tags": "[\"ad-hoc\", \"cook78\", \"easy\", \"math\", \"median\"]"}}, {"model": "core.problem", "pk": 119, "fields": {"code": "LISDIGIT", "name": "Digit Longest Increasing Subsequences 2", "author": "alex_2oo8", "contest_code": "COOK78", "contest_name": "January Cook-Off 2017", "contest_successful_submissions": 975, "contest_accuracy": 59.322033898305, "tags": "[\"cakewalk\", \"constructive\", \"cook78\", \"lis\"]"}}, {"model": "core.problem", "pk": 120, "fields": {"code": "UNGAME", "name": "Unusual game", "author": "alex_2oo8", "contest_code": "COOK78", "contest_name": "January Cook-Off 2017", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook78\", \"dynamic-programming\", \"fractals\", \"math\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 121, "fields": {"code": "CHEFSETC", "name": "Chef and Subset", "author": "mgch", "contest_code": "COOK77", "contest_name": "December Cook-Off 2016", "contest_successful_submissions": 1035, "contest_accuracy": 43.579121789561, "tags": "[\"bitmasks\", \"bruteforce\", \"cakewalk\", \"cook77\"]"}}, {"model": "core.problem", "pk": 122, "fields": {"code": "CHEFARRB", "name": "Chef and Subarrays", "author": "mgch", "contest_code": "COOK77", "contest_name": "December Cook-Off 2016", "contest_successful_submissions": 157, "contest_accuracy": 13.751087902524, "tags": "[\"bitwise\", \"cook77\", \"easy\", \"linear-search\"]"}}, {"model": "core.problem", "pk": 123, "fields": {"code": "CHEFNUMK", "name": "Chef and Queries", "author": "mgch", "contest_code": "COOK77", "contest_name": "December Cook-Off 2016", "contest_successful_submissions": 17, "contest_accuracy": 5.0445103857567, "tags": "[\"cook77\", \"easy-medium\", \"query\"]"}}, {"model": "core.problem", "pk": 124, "fields": {"code": "CHEFTRI4", "name": "Chef and Triangles", "author": "mgch", "contest_code": "COOK77", "contest_name": "December Cook-Off 2016", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"ad-hoc\", \"cook77\", \"geometry\", \"hard\"]"}}, {"model": "core.problem", "pk": 125, "fields": {"code": "CHEFINS", "name": "Chef and Numbers", "author": "mgch", "contest_code": "COOK77", "contest_name": "December Cook-Off 2016", "contest_successful_submissions": 31, "contest_accuracy": 7.0, "tags": "[\"cook77\", \"fft\", \"medium\"]"}}, {"model": "core.problem", "pk": 126, "fields": {"code": "SEQUAT2", "name": "Sebi and the equation 2", "author": "istva_adm", "contest_code": "COOK76", "contest_name": "November Cook-Off 2016", "contest_successful_submissions": 4, "contest_accuracy": 1.186943620178, "tags": "[\"bitwise\", \"cook76\", \"medium-hard\", \"sieve\"]"}}, {"model": "core.problem", "pk": 127, "fields": {"code": "SECUBE", "name": "Sebi and the cube", "author": "istva_adm", "contest_code": "COOK76", "contest_name": "November Cook-Off 2016", "contest_successful_submissions": 27, "contest_accuracy": 2.8066528066528, "tags": "[\"cook76\", \"easy-medium\", \"modular-arith\", \"precomputation\"]"}}, {"model": "core.problem", "pk": 128, "fields": {"code": "SEBIHWY", "name": "Sebi and the highway", "author": "istva_adm", "contest_code": "COOK76", "contest_name": "November Cook-Off 2016", "contest_successful_submissions": 491, "contest_accuracy": 21.112515802781, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook76\"]"}}, {"model": "core.problem", "pk": 129, "fields": {"code": "SELECT", "name": "Sebi and the black money", "author": "istva_adm", "contest_code": "COOK76", "contest_name": "November Cook-Off 2016", "contest_successful_submissions": 10, "contest_accuracy": 45.454545454545, "tags": "[\"backtracking\", \"cook76\", \"medium\"]"}}, {"model": "core.problem", "pk": 130, "fields": {"code": "SETELE", "name": "Sebi and the corrupt goverment", "author": "istva_adm", "contest_code": "COOK76", "contest_name": "November Cook-Off 2016", "contest_successful_submissions": 45, "contest_accuracy": 13.392857142857, "tags": "[\"cook76\", \"easy-medium\", \"union-find\"]"}}, {"model": "core.problem", "pk": 131, "fields": {"code": "UGLYF", "name": "Sherlock and the Ugly Flower", "author": "darkshadows", "contest_code": "COOK75", "contest_name": "October Cook-Off 2016", "contest_successful_submissions": 293, "contest_accuracy": 18.827930174564, "tags": "[\"binary-search\", \"cook75\", \"easy-medium\"]"}}, {"model": "core.problem", "pk": 132, "fields": {"code": "PERMEXIS", "name": "Watson asks Does Permutation Exist", "author": "darkshadows", "contest_code": "COOK75", "contest_name": "October Cook-Off 2016", "contest_successful_submissions": 1666, "contest_accuracy": 57.722477684609, "tags": "[\"cook75\", \"logic\", \"simple\", \"sorting\"]"}}, {"model": "core.problem", "pk": 133, "fields": {"code": "COUNTWAY", "name": "Sherlock Counts Ways", "author": "darkshadows", "contest_code": "COOK75", "contest_name": "October Cook-Off 2016", "contest_successful_submissions": 14, "contest_accuracy": 3.1042128603104, "tags": "[\"combinatorics\", \"cook75\", \"divide-and-conq\", \"fft\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 134, "fields": {"code": "BOOKCHEF", "name": "ChefWatson uses Social Network", "author": "darkshadows", "contest_code": "COOK75", "contest_name": "October Cook-Off 2016", "contest_successful_submissions": 1049, "contest_accuracy": 48.163265306122, "tags": "[\"cakewalk\", \"cook75\", \"sorting\"]"}}, {"model": "core.problem", "pk": 135, "fields": {"code": "SWINDOW", "name": "Sherlock and Smallest Window", "author": "darkshadows", "contest_code": "COOK75", "contest_name": "October Cook-Off 2016", "contest_successful_submissions": 13, "contest_accuracy": 16.25, "tags": "[\"cook75\", \"medium\", \"segment-tree\", \"two-pointers\"]"}}, {"model": "core.problem", "pk": 136, "fields": {"code": "TALAZY", "name": "Lazy Jem", "author": "tuan_adm", "contest_code": "COOK74", "contest_name": "September Cook-Off 2016", "contest_successful_submissions": 2137, "contest_accuracy": 64.833531510107, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook74\"]"}}, {"model": "core.problem", "pk": 137, "fields": {"code": "TAASEQ", "name": "The Lost Arithmetic Sequences", "author": "tuan_adm", "contest_code": "COOK74", "contest_name": "September Cook-Off 2016", "contest_successful_submissions": 518, "contest_accuracy": 16.730401529637, "tags": "[\"cook74\", \"dynamic-programming\", \"easy\"]"}}, {"model": "core.problem", "pk": 138, "fields": {"code": "TACNTSTR", "name": "Counting Strings", "author": "tuan_adm", "contest_code": "COOK74", "contest_name": "September Cook-Off 2016", "contest_successful_submissions": 224, "contest_accuracy": 18.976897689769, "tags": "[\"cook74\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 139, "fields": {"code": "TACTQUER", "name": "Shortest path queries", "author": "tuan_adm", "contest_code": "COOK74", "contest_name": "September Cook-Off 2016", "contest_successful_submissions": 8, "contest_accuracy": 8.4210526315789, "tags": "[\"cook74\", \"dynamic-programming\", \"graph\", \"hard\"]"}}, {"model": "core.problem", "pk": 140, "fields": {"code": "TAPOINT", "name": "Find The Point", "author": "tuan_adm", "contest_code": "COOK74", "contest_name": "September Cook-Off 2016", "contest_successful_submissions": 103, "contest_accuracy": 24.825986078886, "tags": "[\"cook74\", \"geometry\", \"math\", \"medium\"]"}}, {"model": "core.problem", "pk": 141, "fields": {"code": "ALICE", "name": "Alice", "author": "alei", "contest_code": "COOK73", "contest_name": "August Cook-Off 2016", "contest_successful_submissions": 3, "contest_accuracy": 1.5957446808511, "tags": "[\"constructive\", \"cook73\", \"easy-medium\", \"gcd\"]"}}, {"model": "core.problem", "pk": 142, "fields": {"code": "TWEED", "name": "Tweedle-Dee and Tweedle-Dum ", "author": "alei", "contest_code": "COOK73", "contest_name": "August Cook-Off 2016", "contest_successful_submissions": 1061, "contest_accuracy": 30.565823144726, "tags": "[\"cakewalk\", \"cook73\", \"game-theory\", \"parity\"]"}}, {"model": "core.problem", "pk": 143, "fields": {"code": "MADHAT", "name": "Math Hatter", "author": "alei", "contest_code": "COOK73", "contest_name": "August Cook-Off 2016", "contest_successful_submissions": 35, "contest_accuracy": 13.382899628253, "tags": "[\"combinatorics\", \"cook73\", \"easy-medium\", \"maths\"]"}}, {"model": "core.problem", "pk": 144, "fields": {"code": "MCKTUR", "name": "Mock Turtle", "author": "alei", "contest_code": "COOK73", "contest_name": "August Cook-Off 2016", "contest_successful_submissions": 15, "contest_accuracy": 13.636363636364, "tags": "[\"catalan\", \"combinatorics\", \"cook73\", \"medium\"]"}}, {"model": "core.problem", "pk": 145, "fields": {"code": "QUEHEA", "name": "Queen of Hearts", "author": "alei", "contest_code": "COOK73", "contest_name": "August Cook-Off 2016", "contest_successful_submissions": 9, "contest_accuracy": 16.666666666667, "tags": "[\"cook73\", \"data-structure\", \"medium-hard\", \"qeahea\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 146, "fields": {"code": "CHEFCBA", "name": "Chef and Proportion", "author": "mgch", "contest_code": "COOK72", "contest_name": "July Cook-Off 2016", "contest_successful_submissions": 1875, "contest_accuracy": 50.778070385444, "tags": "[\"ad-hoc\", \"cook72\", \"simple\"]"}}, {"model": "core.problem", "pk": 147, "fields": {"code": "CHEFFED", "name": "Chef and Numbers", "author": "mgch", "contest_code": "COOK72", "contest_name": "July Cook-Off 2016", "contest_successful_submissions": 1368, "contest_accuracy": 49.323867478026, "tags": "[\"ad-hoc\", \"cook72\", \"easy\"]"}}, {"model": "core.problem", "pk": 148, "fields": {"code": "CHEFIHG", "name": "Chef and Land", "author": "mgch", "contest_code": "COOK72", "contest_name": "July Cook-Off 2016", "contest_successful_submissions": 127, "contest_accuracy": 17.181208053691, "tags": "[\"bfs\", \"cook72\", \"easy-medium\", \"graph\"]"}}, {"model": "core.problem", "pk": 149, "fields": {"code": "CHEFLKJ", "name": "Chef and Array", "author": "mgch", "contest_code": "COOK72", "contest_name": "July Cook-Off 2016", "contest_successful_submissions": 44, "contest_accuracy": 6.9984447900467, "tags": "[\"cook72\", \"medium\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 150, "fields": {"code": "CHEFONM", "name": "Chef and Sort", "author": "mgch", "contest_code": "COOK72", "contest_name": "July Cook-Off 2016", "contest_successful_submissions": 15, "contest_accuracy": 30.612244897959, "tags": "[\"cook72\", \"expected-value\", \"gauss-elim\", \"hard\", \"permutation\", \"probability\"]"}}, {"model": "core.problem", "pk": 151, "fields": {"code": "STICKS", "name": "Sticks", "author": "kingofnumbers", "contest_code": "COOK71", "contest_name": "June Cook-Off 2016", "contest_successful_submissions": 1396, "contest_accuracy": 38.55748373102, "tags": "[\"cook71\", \"greedy\", \"simple\"]"}}, {"model": "core.problem", "pk": 152, "fields": {"code": "RIGHTTRI", "name": "Right Triangle", "author": "kingofnumbers", "contest_code": "COOK71", "contest_name": "June Cook-Off 2016", "contest_successful_submissions": 989, "contest_accuracy": 39.66588966589, "tags": "[\"binary-search\", \"cook71\", \"easy\"]"}}, {"model": "core.problem", "pk": 153, "fields": {"code": "CAKECUT", "name": "Cutting Cake", "author": "kingofnumbers", "contest_code": "COOK71", "contest_name": "June Cook-Off 2016", "contest_successful_submissions": 22, "contest_accuracy": 14.965986394558, "tags": "[\"bitwise-operatn\", \"cook71\", \"easy-medium\"]"}}, {"model": "core.problem", "pk": 154, "fields": {"code": "CHEFLAND", "name": "Chef Land", "author": "kingofnumbers", "contest_code": "COOK71", "contest_name": "June Cook-Off 2016", "contest_successful_submissions": 51, "contest_accuracy": 5.3388090349076, "tags": "[\"bridges\", \"cook71\", \"graph\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 155, "fields": {"code": "ANDMIN", "name": "Range Minimum Queries ", "author": "kingofnumbers", "contest_code": "COOK71", "contest_name": "June Cook-Off 2016", "contest_successful_submissions": 27, "contest_accuracy": 6.6997518610422, "tags": "[\"bitwise-operatn\", \"cook71\", \"medium\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 156, "fields": {"code": "P1Z2S", "name": "Phantasialand", "author": "wwwwodddd", "contest_code": "COOK70", "contest_name": "May Cook-Off 2016", "contest_successful_submissions": 966, "contest_accuracy": 18.720334156066, "tags": "[\"cakewalk\", \"cook70\"]"}}, {"model": "core.problem", "pk": 157, "fields": {"code": "EURO", "name": "Euro", "author": "wwwwodddd", "contest_code": "COOK70", "contest_name": "May Cook-Off 2016", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook70\", \"dynamic-programming\", \"medium-hard\", \"recursion\"]"}}, {"model": "core.problem", "pk": 158, "fields": {"code": "EZNO", "name": "Easy Numbers", "author": "wwwwodddd", "contest_code": "COOK70", "contest_name": "May Cook-Off 2016", "contest_successful_submissions": 27, "contest_accuracy": 10.769230769231, "tags": "[\"backtracking\", \"cook70\", \"easy\", \"enumeration\", \"pdn\", \"precomputation\"]"}}, {"model": "core.problem", "pk": 159, "fields": {"code": "TANDEM", "name": "Tandem", "author": "wwwwodddd", "contest_code": "COOK70", "contest_name": "May Cook-Off 2016", "contest_successful_submissions": 1, "contest_accuracy": 1.5625, "tags": "[\"cook70\", \"lcp\", \"medium-hard\", \"rmq\", \"segment-tree\", \"string-hashing\", \"suffix-array\"]"}}, {"model": "core.problem", "pk": 160, "fields": {"code": "MAZE", "name": "Maze", "author": "wwwwodddd", "contest_code": "COOK70", "contest_name": "May Cook-Off 2016", "contest_successful_submissions": 7, "contest_accuracy": 8.0459770114943, "tags": "[\"bfs\", \"cook70\", \"dfs\", \"dual-graph\", \"easy-medium\", \"union-find\"]"}}, {"model": "core.problem", "pk": 161, "fields": {"code": "MOVIEWKN", "name": "Movie Weekend", "author": "kostya_by", "contest_code": "COOK69", "contest_name": "April Cook-Off 2016", "contest_successful_submissions": 1444, "contest_accuracy": 63.973799126638, "tags": "[\"cakewalk\", \"cook69\"]"}}, {"model": "core.problem", "pk": 162, "fields": {"code": "ODDDIV", "name": "Odd Divisors", "author": "kostya_by", "contest_code": "COOK69", "contest_name": "April Cook-Off 2016", "contest_successful_submissions": 831, "contest_accuracy": 29.505361466621, "tags": "[\"cook69\", \"divisors\", \"simple\", \"sum\"]"}}, {"model": "core.problem", "pk": 163, "fields": {"code": "BINTREEQ", "name": "Queries on a Binary Tree", "author": "kostya_by", "contest_code": "COOK69", "contest_name": "April Cook-Off 2016", "contest_successful_submissions": 212, "contest_accuracy": 28.477690288714, "tags": "[\"cook69\", \"easy\", \"lca\"]"}}, {"model": "core.problem", "pk": 164, "fields": {"code": "LCPMAX", "name": "LCP Maximization", "author": "kostya_by", "contest_code": "COOK69", "contest_name": "April Cook-Off 2016", "contest_successful_submissions": 18, "contest_accuracy": 12.676056338028, "tags": "[\"cook69\", \"medium\"]"}}, {"model": "core.problem", "pk": 165, "fields": {"code": "BITTWIST", "name": "Bit Twister on a Tree", "author": "kostya_by", "contest_code": "COOK69", "contest_name": "April Cook-Off 2016", "contest_successful_submissions": 10, "contest_accuracy": 25.641025641026, "tags": "[\"cook69\", \"medium-hard\", \"sqrt-decomp\"]"}}, {"model": "core.problem", "pk": 166, "fields": {"code": "NPLANAR", "name": "Not even planar", "author": "xellos0", "contest_code": "COOK68", "contest_name": "March Cook-Off 2016", "contest_successful_submissions": 8, "contest_accuracy": 9.3457943925234, "tags": "[\"cook68\", \"dp+bitmask\", \"edge-cover\", \"matching\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 167, "fields": {"code": "ONOZ", "name": "Digital clock", "author": "xellos0", "contest_code": "COOK68", "contest_name": "March Cook-Off 2016", "contest_successful_submissions": 874, "contest_accuracy": 69.056897895557, "tags": "[\"cakewalk\", \"cook68\", \"string-process\"]"}}, {"model": "core.problem", "pk": 168, "fields": {"code": "TWONIM", "name": "Dual Nim", "author": "xellos0", "contest_code": "COOK68", "contest_name": "March Cook-Off 2016", "contest_successful_submissions": 294, "contest_accuracy": 26.165803108808, "tags": "[\"cook68\", \"easy\", \"game-theory\", \"nim\", \"parity-obsv\"]"}}, {"model": "core.problem", "pk": 169, "fields": {"code": "ALTARAY", "name": "Alternating subarray prefix", "author": "xellos0", "contest_code": "COOK68", "contest_name": "March Cook-Off 2016", "contest_successful_submissions": 949, "contest_accuracy": 38.695478191277, "tags": "[\"cook68\", \"dynamic-programming\", \"simple\"]"}}, {"model": "core.problem", "pk": 170, "fields": {"code": "KTHCON", "name": "The potato problem", "author": "xellos0", "contest_code": "COOK68", "contest_name": "March Cook-Off 2016", "contest_successful_submissions": 17, "contest_accuracy": 9.8837209302326, "tags": "[\"convex-hull\", \"cook68\", \"geometry\", \"medium\", \"two-pointers\"]"}}, {"model": "core.problem", "pk": 171, "fields": {"code": "PUPPYPLM", "name": "Puppy and Palindromes", "author": "pavel1996", "contest_code": "COOK67", "contest_name": "February Cook-Off 2016", "contest_successful_submissions": 22, "contest_accuracy": 24.468085106383, "tags": "[\"constructive\", \"cook67\", \"hashing\", \"palindromes\"]"}}, {"model": "core.problem", "pk": 172, "fields": {"code": "TUZTRN", "name": "Puppy and Triangles", "author": "pavel1996", "contest_code": "COOK67", "contest_name": "February Cook-Off 2016", "contest_successful_submissions": 1, "contest_accuracy": 0.27472527472527, "tags": "[\"cook67\", \"geometry\", \"implementation\", \"maths\"]"}}, {"model": "core.problem", "pk": 173, "fields": {"code": "PPCTS", "name": "Puppy and Catchers", "author": "pavel1996", "contest_code": "COOK67", "contest_name": "February Cook-Off 2016", "contest_successful_submissions": 200, "contest_accuracy": 21.851453175457, "tags": "[\"cook67\", \"geometry\", \"implementation\", \"maths\", \"sorting\"]"}}, {"model": "core.problem", "pk": 174, "fields": {"code": "TUZGMBR", "name": "Puppy and Board", "author": "pavel1996", "contest_code": "COOK67", "contest_name": "February Cook-Off 2016", "contest_successful_submissions": 296, "contest_accuracy": 17.927337701013, "tags": "[\"cook67\", \"dynamic-programming\", \"easy\", \"game-theory\"]"}}, {"model": "core.problem", "pk": 175, "fields": {"code": "PPSUM", "name": "Puppy and Sum", "author": "pavel1996", "contest_code": "COOK67", "contest_name": "February Cook-Off 2016", "contest_successful_submissions": 1438, "contest_accuracy": 76.95949500263, "tags": "[\"basic-math\", \"cakewalk\", \"cook67\", \"implementation\"]"}}, {"model": "core.problem", "pk": 176, "fields": {"code": "DESTROY", "name": "Chef and Destruction", "author": "ma5termind", "contest_code": "COOK66", "contest_name": "January Cook-Off 2016", "contest_successful_submissions": 375, "contest_accuracy": 8.3713850837139, "tags": "[\"cook66\", \"easy\", \"greedy\"]"}}, {"model": "core.problem", "pk": 177, "fields": {"code": "PALSTR", "name": "Chef And Palindromes", "author": "ma5termind", "contest_code": "COOK66", "contest_name": "January Cook-Off 2016", "contest_successful_submissions": 4, "contest_accuracy": 8.3333333333333, "tags": "[\"cook66\", \"dynamic-programming\", \"medium-hard\", \"palindrome\", \"strings\", \"z-algorithm\"]"}}, {"model": "core.problem", "pk": 178, "fields": {"code": "MXSM", "name": "Chef and Maximum Sum Matrices ", "author": "ma5termind", "contest_code": "COOK66", "contest_name": "January Cook-Off 2016", "contest_successful_submissions": 20, "contest_accuracy": 11.834319526627, "tags": "[\"ad-hoc\", \"cook66\", \"easy-medium\", \"greedy\"]"}}, {"model": "core.problem", "pk": 179, "fields": {"code": "CFTREE", "name": "Chef And Fibonacci Tree", "author": "ma5termind", "contest_code": "COOK66", "contest_name": "January Cook-Off 2016", "contest_successful_submissions": 27, "contest_accuracy": 11.489361702128, "tags": "[\"cook66\", \"data-structure\", \"graph\", \"medium\", \"sqrt-decomp\"]"}}, {"model": "core.problem", "pk": 180, "fields": {"code": "FRUITS", "name": "Chef and Fruits", "author": "ma5termind", "contest_code": "COOK66", "contest_name": "January Cook-Off 2016", "contest_successful_submissions": 1745, "contest_accuracy": 56.064434617814, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook66\"]"}}, {"model": "core.problem", "pk": 181, "fields": {"code": "CHEFARRP", "name": "Chef and Subarrays", "author": "mgch", "contest_code": "COOK65", "contest_name": "December Cook-Off 2015", "contest_successful_submissions": 939, "contest_accuracy": 77.598710717164, "tags": "[\"ad-hoc\", \"cook65\", \"simple\"]"}}, {"model": "core.problem", "pk": 182, "fields": {"code": "CHEFQUE", "name": "Chef and Queries", "author": "mgch", "contest_code": "COOK65", "contest_name": "December Cook-Off 2015", "contest_successful_submissions": 97, "contest_accuracy": 12.106537530266, "tags": "[\"bitset\", \"cook65\", \"easy-medium\", \"hashing\"]"}}, {"model": "core.problem", "pk": 183, "fields": {"code": "CHEFKLCS", "name": "Chef and LCS", "author": "mgch", "contest_code": "COOK65", "contest_name": "December Cook-Off 2015", "contest_successful_submissions": 20, "contest_accuracy": 8.4745762711864, "tags": "[\"cook65\", \"dp+lcs\", \"dynamic-programming\", \"lcs\", \"medium\"]"}}, {"model": "core.problem", "pk": 184, "fields": {"code": "CHEFTREE", "name": "Chef and Tree", "author": "mgch", "contest_code": "COOK65", "contest_name": "December Cook-Off 2015", "contest_successful_submissions": 6, "contest_accuracy": 11.111111111111, "tags": "[\"cook65\", \"data-structure\", \"hard\", \"heavy-light\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 185, "fields": {"code": "CHEFVEC", "name": "Chef and Vectors", "author": "mgch", "contest_code": "COOK65", "contest_name": "December Cook-Off 2015", "contest_successful_submissions": 7, "contest_accuracy": 30.434782608696, "tags": "[\"cook65\", \"digit-dp\", \"dynamic-programming\", \"hard\", \"memoization\"]"}}, {"model": "core.problem", "pk": 186, "fields": {"code": "SEALINE", "name": "Sereja and Line", "author": "sereja_adm", "contest_code": "COOK64", "contest_name": "November Cook-Off 2015", "contest_successful_submissions": 397, "contest_accuracy": 54.72972972973, "tags": "[\"cook64\", \"easy\", \"implementation\", \"simulation\"]"}}, {"model": "core.problem", "pk": 187, "fields": {"code": "SEAARASU", "name": "Sereja and Array and Subtracting", "author": "sereja_adm", "contest_code": "COOK64", "contest_name": "November Cook-Off 2015", "contest_successful_submissions": 612, "contest_accuracy": 23.496451251401, "tags": "[\"cook64\", \"easy\", \"gcd\", \"mathematics\", \"number-theory\"]"}}, {"model": "core.problem", "pk": 188, "fields": {"code": "SEAPAIR", "name": "Sereja and Pairs", "author": "sereja_adm", "contest_code": "COOK64", "contest_name": "November Cook-Off 2015", "contest_successful_submissions": 62, "contest_accuracy": 22.299651567944, "tags": "[\"cook64\", \"easy-medium\", \"greedy\", \"implementation\", \"maths\", \"sorting\"]"}}, {"model": "core.problem", "pk": 189, "fields": {"code": "SEATR", "name": "Sereja and Tree", "author": "sereja_adm", "contest_code": "COOK64", "contest_name": "November Cook-Off 2015", "contest_successful_submissions": 7, "contest_accuracy": 20.0, "tags": "[\"cook64\", \"dynamic-programming\", \"hard\", \"mathematics\", \"memoization\", \"tree\"]"}}, {"model": "core.problem", "pk": 190, "fields": {"code": "SEATR2", "name": "Sereja and Tree 2", "author": "sereja_adm", "contest_code": "COOK64", "contest_name": "November Cook-Off 2015", "contest_successful_submissions": 66, "contest_accuracy": 13.412228796844, "tags": "[\"cook64\", \"dynamic-programming\", \"maths\", \"medium\", \"tree\"]"}}, {"model": "core.problem", "pk": 191, "fields": {"code": "PP", "name": "Palindrome Pairs", "author": "jingbo_adm", "contest_code": "COOK63", "contest_name": "October Cook-Off 2015", "contest_successful_submissions": 46, "contest_accuracy": 4.7817047817048, "tags": "[\"cook63\", \"medium-hard\", \"palindrome\", \"rolling-hash\", \"strings\", \"trie\"]"}}, {"model": "core.problem", "pk": 192, "fields": {"code": "SLIS", "name": "Second LIS", "author": "jingbo_adm", "contest_code": "COOK63", "contest_name": "October Cook-Off 2015", "contest_successful_submissions": 8, "contest_accuracy": 6.7226890756303, "tags": "[\"cook63\", \"medium\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 193, "fields": {"code": "FSFSFS", "name": "Factorial to Square", "author": "jingbo_adm", "contest_code": "COOK63", "contest_name": "October Cook-Off 2015", "contest_successful_submissions": 2, "contest_accuracy": 1.6666666666667, "tags": "[\"cook63\", \"dp+bitmask\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 194, "fields": {"code": "STEM", "name": "Word Stem", "author": "jingbo_adm", "contest_code": "COOK63", "contest_name": "October Cook-Off 2015", "contest_successful_submissions": 659, "contest_accuracy": 26.79580306699, "tags": "[\"cook63\", \"easy\", \"hashmaps\", \"strings\"]"}}, {"model": "core.problem", "pk": 195, "fields": {"code": "ASP", "name": "Almost Sorted Permutation", "author": "jingbo_adm", "contest_code": "COOK63", "contest_name": "October Cook-Off 2015", "contest_successful_submissions": 966, "contest_accuracy": 19.947665056361, "tags": "[\"ad-hoc\", \"cook63\", \"simple\"]"}}, {"model": "core.problem", "pk": 196, "fields": {"code": "REIGN2", "name": "Reign 2", "author": "kostya_by", "contest_code": "COOK62", "contest_name": "September Mega Cook-Off 2015", "contest_successful_submissions": 120, "contest_accuracy": 51.694915254237, "tags": "[\"cook62\", \"dynamic-programming\", \"easy-medium\", \"greedy\"]"}}, {"model": "core.problem", "pk": 197, "fields": {"code": "SUBGRAPH", "name": "Counting Subgraphs", "author": "kostya_by", "contest_code": "COOK62", "contest_name": "September Mega Cook-Off 2015", "contest_successful_submissions": 10, "contest_accuracy": 21.153846153846, "tags": "[\"cook62\", \"dynamic-programming\", \"graph\", \"medium-hard\", \"tree\"]"}}, {"model": "core.problem", "pk": 198, "fields": {"code": "FRGTNLNG", "name": "Forgotten Language", "author": "kostya_by", "contest_code": "COOK62", "contest_name": "September Mega Cook-Off 2015", "contest_successful_submissions": 1787, "contest_accuracy": 62.478485370052, "tags": "[\"basic-prog\", \"cakewalk\", \"cook62\", \"strings\"]"}}, {"model": "core.problem", "pk": 199, "fields": {"code": "SPRNMBRS", "name": "Super Numbers", "author": "kostya_by", "contest_code": "COOK62", "contest_name": "September Mega Cook-Off 2015", "contest_successful_submissions": 436, "contest_accuracy": 18.252987227029, "tags": "[\"cook62\", \"easy-medium\", \"number-theory\"]"}}, {"model": "core.problem", "pk": 200, "fields": {"code": "STACKS", "name": "Stacks", "author": "kostya_by", "contest_code": "COOK62", "contest_name": "September Mega Cook-Off 2015", "contest_successful_submissions": 876, "contest_accuracy": 25.084745762712, "tags": "[\"binary-search\", \"cook62\", \"simple\"]"}}, {"model": "core.problem", "pk": 201, "fields": {"code": "DUALPAL", "name": "Chef and the Dual Palindromes", "author": "imran_adm", "contest_code": "COOK61", "contest_name": "August Cook-Off 2015", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"backtracking\", \"cook61\", \"hard\", \"maths\"]"}}, {"model": "core.problem", "pk": 202, "fields": {"code": "XORNUBER", "name": "Chef and the XORed Number ", "author": "imran_adm", "contest_code": "COOK61", "contest_name": "August Cook-Off 2015", "contest_successful_submissions": 1578, "contest_accuracy": 21.048884670147, "tags": "[\"basic-maths\", \"bitwise-operatn\", \"cook61\", \"simple\"]"}}, {"model": "core.problem", "pk": 203, "fields": {"code": "SEQLCS", "name": "Chef and the Number Sequence", "author": "imran_adm", "contest_code": "COOK61", "contest_name": "August Cook-Off 2015", "contest_successful_submissions": 13, "contest_accuracy": 10.236220472441, "tags": "[\"cook61\", \"dp+bitmask\", \"medium\"]"}}, {"model": "core.problem", "pk": 204, "fields": {"code": "CARDLINE", "name": "Chef and the Cards", "author": "imran_adm", "contest_code": "COOK61", "contest_name": "August Cook-Off 2015", "contest_successful_submissions": 10, "contest_accuracy": 1.8214936247723, "tags": "[\"cook61\", \"dynamic-programming\", \"graphs\", \"greedy\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 205, "fields": {"code": "TWOSTR", "name": "Chef and the Wildcard Matching", "author": "imran_adm", "contest_code": "COOK61", "contest_name": "August Cook-Off 2015", "contest_successful_submissions": 2729, "contest_accuracy": 54.208223972004, "tags": "[\"basic-prog\", \"cakewalk\", \"cook61\", \"implementation\", \"strings\"]"}}, {"model": "core.problem", "pk": 206, "fields": {"code": "COPS", "name": "Cops and the Thief Devu", "author": "devuy11", "contest_code": "COOK60", "contest_name": "July Cook-Off 2015", "contest_successful_submissions": 1511, "contest_accuracy": 58.671726755218, "tags": "[\"cakewalk\", \"cook60\"]"}}, {"model": "core.problem", "pk": 207, "fields": {"code": "SUMPAIR", "name": "Maximize Disjoint Pair Sum", "author": "devuy11", "contest_code": "COOK60", "contest_name": "July Cook-Off 2015", "contest_successful_submissions": 937, "contest_accuracy": 33.157199471598, "tags": "[\"cook60\", \"simple\"]"}}, {"model": "core.problem", "pk": 208, "fields": {"code": "KNODES", "name": "Path containing K Nodes", "author": "devuy11", "contest_code": "COOK60", "contest_name": "July Cook-Off 2015", "contest_successful_submissions": 86, "contest_accuracy": 11.436170212766, "tags": "[\"bfs\", \"cook60\", \"medium\"]"}}, {"model": "core.problem", "pk": 209, "fields": {"code": "COMB4SUM", "name": "Adding Special Sum", "author": "devuy11", "contest_code": "COOK60", "contest_name": "July Cook-Off 2015", "contest_successful_submissions": 71, "contest_accuracy": 20.491803278689, "tags": "[\"cook60\", \"easy-medium\"]"}}, {"model": "core.problem", "pk": 210, "fields": {"code": "SEQTOWER", "name": "Adding Up Sequences of Towers", "author": "devuy11", "contest_code": "COOK60", "contest_name": "July Cook-Off 2015", "contest_successful_submissions": 5, "contest_accuracy": 8.6206896551724, "tags": "[\"cook60\", \"maths\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 211, "fields": {"code": "ANKPAREN", "name": "Longest non regular parentheses sub-sequence", "author": "code_master01", "contest_code": "COOK59", "contest_name": "June Cook-Off 2015", "contest_successful_submissions": 222, "contest_accuracy": 14.436002337814, "tags": "[\"basic-prog\", \"cook59\", \"easy-medium\", \"pattern\", \"stack\"]"}}, {"model": "core.problem", "pk": 212, "fields": {"code": "ANKMARKS", "name": "VS and his marking scheme", "author": "code_master01", "contest_code": "COOK59", "contest_name": "June Cook-Off 2015", "contest_successful_submissions": 15, "contest_accuracy": 8.3333333333333, "tags": "[\"cook59\", \"matrix-expo\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 213, "fields": {"code": "ANKGAME", "name": "Ankit, Srijan and a game of stone piles", "author": "code_master01", "contest_code": "COOK59", "contest_name": "June Cook-Off 2015", "contest_successful_submissions": 78, "contest_accuracy": 19.174757281553, "tags": "[\"combinatorics\", \"cook59\", \"counting\", \"easy-medium\", \"game-theory\"]"}}, {"model": "core.problem", "pk": 214, "fields": {"code": "ANKNIM2", "name": "Bored of Nim", "author": "code_master01", "contest_code": "COOK59", "contest_name": "June Cook-Off 2015", "contest_successful_submissions": 13, "contest_accuracy": 11.016949152542, "tags": "[\"cook59\", \"fft\", \"game-theory\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 215, "fields": {"code": "UTMOPR", "name": "Strange operations", "author": "code_note", "contest_code": "COOK59", "contest_name": "June Cook-Off 2015", "contest_successful_submissions": 1644, "contest_accuracy": 48.689893463864, "tags": "[\"basic-prog\", \"cakewalk\", \"cook59\", \"simulation\"]"}}, {"model": "core.problem", "pk": 216, "fields": {"code": "DEVBDAY", "name": "Devu, his friends and birthday gifts", "author": "admin2", "contest_code": "COOK58", "contest_name": "May Cook-Off 2015", "contest_successful_submissions": 68, "contest_accuracy": 7.0552147239264, "tags": "[\"basic-graph\", \"cook58\", \"easy\"]"}}, {"model": "core.problem", "pk": 217, "fields": {"code": "CFRTEST", "name": "Devu and friendship testing", "author": "admin2", "contest_code": "COOK58", "contest_name": "May Cook-Off 2015", "contest_successful_submissions": 1756, "contest_accuracy": 66.908826734471, "tags": "[\"cakewalk\", \"cook58\"]"}}, {"model": "core.problem", "pk": 218, "fields": {"code": "REARRSTR", "name": "Devu and decorating birthday cake", "author": "admin2", "contest_code": "COOK58", "contest_name": "May Cook-Off 2015", "contest_successful_submissions": 486, "contest_accuracy": 18.195211786372, "tags": "[\"cook58\", \"easy\", \"greedy\"]"}}, {"model": "core.problem", "pk": 219, "fields": {"code": "XORGRID", "name": "Devu and most energetic minion", "author": "anil_adm", "contest_code": "COOK58", "contest_name": "May Cook-Off 2015", "contest_successful_submissions": 35, "contest_accuracy": 13.382899628253, "tags": "[\"cook58\", \"medium-hard\", \"tries\"]"}}, {"model": "core.problem", "pk": 220, "fields": {"code": "MINPOLY", "name": "Devu, his sister and Rangoli", "author": "admin2", "contest_code": "COOK58", "contest_name": "May Cook-Off 2015", "contest_successful_submissions": 6, "contest_accuracy": 9.6774193548387, "tags": "[\"cook58\", \"geometry\", \"hard\"]"}}, {"model": "core.problem", "pk": 221, "fields": {"code": "LFIVES", "name": "Lucky Fives", "author": "kostya_by", "contest_code": "COOK57", "contest_name": "April Cook-Off 2015", "contest_successful_submissions": 58, "contest_accuracy": 8.1550802139037, "tags": "[\"cook57\", \"dynamic-programming\", \"fenwick\", \"medium\"]"}}, {"model": "core.problem", "pk": 222, "fields": {"code": "AGENTS", "name": "Special Agents", "author": "kostya_by", "contest_code": "COOK57", "contest_name": "April Cook-Off 2015", "contest_successful_submissions": 15, "contest_accuracy": 31.481481481481, "tags": "[\"cook57\", \"hard\", \"linear-algebra\", \"math\"]"}}, {"model": "core.problem", "pk": 223, "fields": {"code": "TDRIVER", "name": "Taxi Driver", "author": "kostya_by", "contest_code": "COOK57", "contest_name": "April Cook-Off 2015", "contest_successful_submissions": 21, "contest_accuracy": 12.209302325581, "tags": "[\"cook57\", \"geometry\", \"manhattan\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 224, "fields": {"code": "EQUALITY", "name": "Equality", "author": "kostya_by", "contest_code": "COOK57", "contest_name": "April Cook-Off 2015", "contest_successful_submissions": 874, "contest_accuracy": 57.723577235772, "tags": "[\"cook57\", \"easy\", \"linear-algebra\", \"math\"]"}}, {"model": "core.problem", "pk": 225, "fields": {"code": "VCS", "name": "Version Control System", "author": "kostya_by", "contest_code": "COOK57", "contest_name": "April Cook-Off 2015", "contest_successful_submissions": 1031, "contest_accuracy": 73.048200950441, "tags": "[\"cakewalk\", \"cook57\", \"sets\"]"}}, {"model": "core.problem", "pk": 226, "fields": {"code": "KINT", "name": "How to Choose a Subset", "author": "witaliy_adm", "contest_code": "COOK56", "contest_name": "March Cook-Off 2015", "contest_successful_submissions": 13, "contest_accuracy": 21.666666666667, "tags": "[\"cook56\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 227, "fields": {"code": "DIVGOLD", "name": "How to Minimize a String", "author": "witaliy_adm", "contest_code": "COOK56", "contest_name": "March Cook-Off 2015", "contest_successful_submissions": 372, "contest_accuracy": 8.2870473228172, "tags": "[\"cakewalk\", \"cook56\", \"simulation\", \"sorting\"]"}}, {"model": "core.problem", "pk": 228, "fields": {"code": "STRAB", "name": "How to Write a Message", "author": "witaliy_adm", "contest_code": "COOK56", "contest_name": "March Cook-Off 2015", "contest_successful_submissions": 61, "contest_accuracy": 13.90134529148, "tags": "[\"cook56\", \"dynamic-programming\", \"easy-medium\", \"recursion\"]"}}, {"model": "core.problem", "pk": 229, "fields": {"code": "STRBIT", "name": "How to Repaint a Fence", "author": "witaliy_adm", "contest_code": "COOK56", "contest_name": "March Cook-Off 2015", "contest_successful_submissions": 266, "contest_accuracy": 26.371511068335, "tags": "[\"bit\", \"cook56\", \"easy\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 230, "fields": {"code": "VISITALL", "name": "How to Operate a Robot", "author": "witaliy_adm", "contest_code": "COOK56", "contest_name": "March Cook-Off 2015", "contest_successful_submissions": 4, "contest_accuracy": 21.052631578947, "tags": "[\"cook56\", \"easy\", \"simulation\"]"}}, {"model": "core.problem", "pk": 231, "fields": {"code": "FOMBRO", "name": "Zombinatorial", "author": "devuy11", "contest_code": "COOK55", "contest_name": "February Cook-Off 2015", "contest_successful_submissions": 45, "contest_accuracy": 14.285714285714, "tags": "[\"cook55\", \"dynamic-programming\", \"mathematics\", \"simple\"]"}}, {"model": "core.problem", "pk": 232, "fields": {"code": "SUBARRAY", "name": "Parenthesis with Maximum Sum Subarray", "author": "devuy11", "contest_code": "COOK55", "contest_name": "February Cook-Off 2015", "contest_successful_submissions": 78, "contest_accuracy": 11.287988422576, "tags": "[\"cook55\", \"data-structure\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 233, "fields": {"code": "SPSHORT", "name": "Special Shortest Walk", "author": "devuy11", "contest_code": "COOK55", "contest_name": "February Cook-Off 2015", "contest_successful_submissions": 8, "contest_accuracy": 17.391304347826, "tags": "[\"cook55\", \"dijkstra\", \"graph\", \"medium-hard\", \"paths-in-graph\", \"shortest-path\"]"}}, {"model": "core.problem", "pk": 234, "fields": {"code": "TRISQ", "name": "Fit Squares in Triangle", "author": "devuy11", "contest_code": "COOK55", "contest_name": "February Cook-Off 2015", "contest_successful_submissions": 1543, "contest_accuracy": 81.728778467909, "tags": "[\"cakewalk\", \"cook55\", \"geometry\", \"recursion\"]"}}, {"model": "core.problem", "pk": 235, "fields": {"code": "WORLDCUP", "name": "Strategy for the World Cup", "author": "devuy11", "contest_code": "COOK55", "contest_name": "February Cook-Off 2015", "contest_successful_submissions": 288, "contest_accuracy": 18.819188191882, "tags": "[\"combinatorics\", \"cook55\", \"dynamic-programming\", \"maths\", \"simple\"]"}}, {"model": "core.problem", "pk": 236, "fields": {"code": "ANUBTG", "name": "Suraj goes shopping", "author": "anudeep2011", "contest_code": "COOK54", "contest_name": "January Cook-Off 2015", "contest_successful_submissions": 1541, "contest_accuracy": 52.37825594564, "tags": "[\"cook54\", \"easy\", \"greedy\"]"}}, {"model": "core.problem", "pk": 237, "fields": {"code": "ANUTHM", "name": "Tojo hates probabilities", "author": "anudeep2011", "contest_code": "COOK54", "contest_name": "January Cook-Off 2015", "contest_successful_submissions": 700, "contest_accuracy": 34.804142278253, "tags": "[\"cook54\", \"easy\", \"maths\"]"}}, {"model": "core.problem", "pk": 238, "fields": {"code": "ANUAAA", "name": "Anup at Amrithapuri", "author": "anudeep2011", "contest_code": "COOK54", "contest_name": "January Cook-Off 2015", "contest_successful_submissions": 9, "contest_accuracy": 18.0, "tags": "[\"cook54\", \"medium-hard\", \"mo-algorithm\"]"}}, {"model": "core.problem", "pk": 239, "fields": {"code": "ANURRZ", "name": "Random Rudreshwar", "author": "anudeep2011", "contest_code": "COOK54", "contest_name": "January Cook-Off 2015", "contest_successful_submissions": 65, "contest_accuracy": 14.0, "tags": "[\"cook54\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 240, "fields": {"code": "ANUAHR", "name": "Abhijeet and rectangles", "author": "anudeep2011", "contest_code": "COOK54", "contest_name": "January Cook-Off 2015", "contest_successful_submissions": 33, "contest_accuracy": 12.751677852349, "tags": "[\"cook54\", \"data-structure\", \"medium\"]"}}, {"model": "core.problem", "pk": 241, "fields": {"code": "RRSERVER", "name": "Servers", "author": "roman_adm", "contest_code": "COOK53", "contest_name": "December Cook-Off 2014", "contest_successful_submissions": 48, "contest_accuracy": 12.376237623762, "tags": "[\"cook53\", \"dp+bitmask\", \"medium\"]"}}, {"model": "core.problem", "pk": 242, "fields": {"code": "RRJAM", "name": "Jam", "author": "roman_adm", "contest_code": "COOK53", "contest_name": "December Cook-Off 2014", "contest_successful_submissions": 21, "contest_accuracy": 12.169312169312, "tags": "[\"cook53\", \"hard\", \"sqrt-decomp\"]"}}, {"model": "core.problem", "pk": 243, "fields": {"code": "RRMTRX2", "name": "Matrix Again", "author": "roman_adm", "contest_code": "COOK53", "contest_name": "December Cook-Off 2014", "contest_successful_submissions": 333, "contest_accuracy": 13.973619126134, "tags": "[\"cook53\", \"easy\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 244, "fields": {"code": "RRPLAYER", "name": "Player", "author": "roman_adm", "contest_code": "COOK53", "contest_name": "December Cook-Off 2014", "contest_successful_submissions": 251, "contest_accuracy": 60.952380952381, "tags": "[\"cook53\", \"dynamic-programming\", \"easy-medium\", \"probability\"]"}}, {"model": "core.problem", "pk": 245, "fields": {"code": "RRJOKE", "name": "Good Joke!", "author": "roman_adm", "contest_code": "COOK53", "contest_name": "December Cook-Off 2014", "contest_successful_submissions": 1150, "contest_accuracy": 81.906750173974, "tags": "[\"ad-hoc\", \"cook53\", \"easy\"]"}}, {"model": "core.problem", "pk": 246, "fields": {"code": "COVERING", "name": "Covering Sets", "author": "kostya_by", "contest_code": "COOK52", "contest_name": "November Cook-Off 2014", "contest_successful_submissions": 13, "contest_accuracy": 37.837837837838, "tags": "[\"cook52\", \"divide-and-conq\", \"inclusn-exclusn\", \"medium-hard\", \"sets\"]"}}, {"model": "core.problem", "pk": 247, "fields": {"code": "LSTGRPH", "name": "Lost Graph", "author": "kostya_by", "contest_code": "COOK52", "contest_name": "November Cook-Off 2014", "contest_successful_submissions": 78, "contest_accuracy": 25.714285714286, "tags": "[\"bfs\", \"bipartite\", \"cook52\", \"easy-medium\", \"graphs\"]"}}, {"model": "core.problem", "pk": 248, "fields": {"code": "MOSTDIST", "name": "Most Distant Points", "author": "kostya_by", "contest_code": "COOK52", "contest_name": "November Cook-Off 2014", "contest_successful_submissions": 71, "contest_accuracy": 13.670411985019, "tags": "[\"cook52\", \"easy\", \"geometry\", \"heap\", \"manhattan\"]"}}, {"model": "core.problem", "pk": 249, "fields": {"code": "BRACKETS", "name": "Brackets", "author": "kostya_by", "contest_code": "COOK52", "contest_name": "November Cook-Off 2014", "contest_successful_submissions": 1428, "contest_accuracy": 55.106621773288, "tags": "[\"basics\", \"cakewalk\", \"cook52\"]"}}, {"model": "core.problem", "pk": 250, "fields": {"code": "PETERSEN", "name": "Petersen Graph", "author": "kostya_by", "contest_code": "COOK52", "contest_name": "November Cook-Off 2014", "contest_successful_submissions": 481, "contest_accuracy": 33.85989010989, "tags": "[\"bfs\", \"cook52\", \"graphs\", \"simple\", \"traversal\"]"}}, {"model": "core.problem", "pk": 251, "fields": {"code": "ANUTDP", "name": "The Dirty Path", "author": "anudeep2011", "contest_code": "COOK51", "contest_name": "October Cook-Off 2014", "contest_successful_submissions": 35, "contest_accuracy": 9.6153846153846, "tags": "[\"bfs\", \"binary-search\", \"cook51\", \"dfs\", \"easy-medium\", \"sorting\"]"}}, {"model": "core.problem", "pk": 252, "fields": {"code": "ANUARM", "name": "The Army", "author": "anudeep2011", "contest_code": "COOK51", "contest_name": "October Cook-Off 2014", "contest_successful_submissions": 1463, "contest_accuracy": 34.685598377282, "tags": "[\"cook51\", \"simple\"]"}}, {"model": "core.problem", "pk": 253, "fields": {"code": "ANUWTA", "name": "Walk on the Axis", "author": "anudeep2011", "contest_code": "COOK51", "contest_name": "October Cook-Off 2014", "contest_successful_submissions": 2062, "contest_accuracy": 32.993859517747, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook51\"]"}}, {"model": "core.problem", "pk": 254, "fields": {"code": "ANUSFR", "name": "Substring and five rules", "author": "anudeep2011", "contest_code": "COOK51", "contest_name": "October Cook-Off 2014", "contest_successful_submissions": 1, "contest_accuracy": 1.2820512820513, "tags": "[\"cook51\", \"greedy\", \"hard\", \"segment-tree\", \"two-pointers\"]"}}, {"model": "core.problem", "pk": 255, "fields": {"code": "ANUMLA", "name": "Mahesh and his lost array", "author": "anudeep2011", "contest_code": "COOK51", "contest_name": "October Cook-Off 2014", "contest_successful_submissions": 258, "contest_accuracy": 8.1481481481481, "tags": "[\"cook51\", \"easy\", \"greedy\", \"heap\", \"multiset\"]"}}, {"model": "core.problem", "pk": 256, "fields": {"code": "GRID", "name": "Sherlock and the Grid", "author": "darkshadows", "contest_code": "COOK50", "contest_name": "September Cook-Off 2014, ACM-ICPC Warm up", "contest_successful_submissions": 1295, "contest_accuracy": 29.028721771541, "tags": "[\"cook50\", \"dynamic-programming\", \"simple\"]"}}, {"model": "core.problem", "pk": 257, "fields": {"code": "SUBGCD", "name": "Subarray GCD", "author": "darkshadows", "contest_code": "COOK50", "contest_name": "September Cook-Off 2014, ACM-ICPC Warm up", "contest_successful_submissions": 1463, "contest_accuracy": 28.854206318995, "tags": "[\"cakewalk\", \"cook50\", \"maths\"]"}}, {"model": "core.problem", "pk": 258, "fields": {"code": "SUBLCM", "name": "Subarray LCM", "author": "darkshadows", "contest_code": "COOK50", "contest_name": "September Cook-Off 2014, ACM-ICPC Warm up", "contest_successful_submissions": 236, "contest_accuracy": 8.6589229144667, "tags": "[\"cook50\", \"dynamic-programming\", \"lcm\", \"math\", \"medium\"]"}}, {"model": "core.problem", "pk": 259, "fields": {"code": "WW2", "name": "World War 2", "author": "darkshadows", "contest_code": "COOK50", "contest_name": "September Cook-Off 2014, ACM-ICPC Warm up", "contest_successful_submissions": 102, "contest_accuracy": 22.616407982262, "tags": "[\"cook50\", \"exponentiation\", \"medium\"]"}}, {"model": "core.problem", "pk": 260, "fields": {"code": "UPDTREE", "name": "Updating Edges on Trees", "author": "darkshadows", "contest_code": "COOK50", "contest_name": "September Cook-Off 2014, ACM-ICPC Warm up", "contest_successful_submissions": 29, "contest_accuracy": 27.102803738318, "tags": "[\"cook50\", \"dfs\", \"dynamic-programming\", \"lca\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 261, "fields": {"code": "TREEGAME", "name": "Tree Game", "author": "witaliy_adm", "contest_code": "COOK49", "contest_name": "August Cook-Off 2014", "contest_successful_submissions": 206, "contest_accuracy": 32.326283987915, "tags": "[\"cook49\", \"easy\", \"games\", \"greedy\", \"pointers\"]"}}, {"model": "core.problem", "pk": 262, "fields": {"code": "PERMSUFF", "name": "Permutation Shuffle", "author": "witaliy_adm", "contest_code": "COOK49", "contest_name": "August Cook-Off 2014", "contest_successful_submissions": 510, "contest_accuracy": 10.761259465923, "tags": "[\"cook49\", \"scanline\", \"simple\", \"sorting\"]"}}, {"model": "core.problem", "pk": 263, "fields": {"code": "SHOOTING", "name": "Shooting", "author": "witaliy_adm", "contest_code": "COOK49", "contest_name": "August Cook-Off 2014", "contest_successful_submissions": 49, "contest_accuracy": 2.5076765609007, "tags": "[\"bruteforce\", \"cook49\", \"greedy\", \"simple\"]"}}, {"model": "core.problem", "pk": 264, "fields": {"code": "TREERGB", "name": "Paint the Tree", "author": "witaliy_adm", "contest_code": "COOK49", "contest_name": "August Cook-Off 2014", "contest_successful_submissions": 1, "contest_accuracy": 3.7037037037037, "tags": "[\"cook49\", \"dynamic-programming\", \"easy-medium\", \"tree\"]"}}, {"model": "core.problem", "pk": 265, "fields": {"code": "CNTDIGIT", "name": "Count Digits", "author": "witaliy_adm", "contest_code": "COOK49", "contest_name": "August Cook-Off 2014", "contest_successful_submissions": 4, "contest_accuracy": 1.7857142857143, "tags": "[\"cook49\", \"dynamic-programming\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 266, "fields": {"code": "RRCOPY", "name": "Copy-Paste", "author": "roman_adm", "contest_code": "COOK48", "contest_name": "July Cook-Off 2014", "contest_successful_submissions": 1950, "contest_accuracy": 53.476202342387, "tags": "[\"cakewalk\", \"cook48\"]"}}, {"model": "core.problem", "pk": 267, "fields": {"code": "RRDAG", "name": "Present for Andrii", "author": "roman_adm", "contest_code": "COOK48", "contest_name": "July Cook-Off 2014", "contest_successful_submissions": 32, "contest_accuracy": 8.6387434554974, "tags": "[\"cook48\", \"graph\", \"medium\"]"}}, {"model": "core.problem", "pk": 268, "fields": {"code": "RRSUM", "name": "Sum Queries", "author": "roman_adm", "contest_code": "COOK48", "contest_name": "July Cook-Off 2014", "contest_successful_submissions": 1654, "contest_accuracy": 44.423705086328, "tags": "[\"cook48\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 269, "fields": {"code": "RRTREE2", "name": "Tree Again", "author": "roman_adm", "contest_code": "COOK48", "contest_name": "July Cook-Off 2014", "contest_successful_submissions": 16, "contest_accuracy": 14.782608695652, "tags": "[\"cook48\", \"dfs\", \"knapsack\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 270, "fields": {"code": "RRFRNDS", "name": "Friends", "author": "roman_adm", "contest_code": "COOK48", "contest_name": "July Cook-Off 2014", "contest_successful_submissions": 152, "contest_accuracy": 5.6710109193378, "tags": "[\"cook48\", \"graph\", \"medium\"]"}}, {"model": "core.problem", "pk": 271, "fields": {"code": "WTHINGS", "name": "Where the Wild Things Are", "author": "kostya_by", "contest_code": "COOK47", "contest_name": "June Cook-Off 2014", "contest_successful_submissions": 31, "contest_accuracy": 10.839160839161, "tags": "[\"binary-search\", \"cook47\", \"medium-hard\", \"polygons\"]"}}, {"model": "core.problem", "pk": 272, "fields": {"code": "FLAGS", "name": "Counting Flags", "author": "kostya_by", "contest_code": "COOK47", "contest_name": "June Cook-Off 2014", "contest_successful_submissions": 874, "contest_accuracy": 34.033771106942, "tags": "[\"combinatorics\", \"cook47\", \"easy\"]"}}, {"model": "core.problem", "pk": 273, "fields": {"code": "KNPSK", "name": "Knapsack Problem", "author": "kostya_by", "contest_code": "COOK47", "contest_name": "June Cook-Off 2014", "contest_successful_submissions": 118, "contest_accuracy": 10.922112802149, "tags": "[\"cook47\", \"easy-medium\", \"greedy\", \"sorting\"]"}}, {"model": "core.problem", "pk": 274, "fields": {"code": "PNTNG", "name": "Painting", "author": "kostya_by", "contest_code": "COOK47", "contest_name": "June Cook-Off 2014", "contest_successful_submissions": 606, "contest_accuracy": 31.371571072319, "tags": "[\"cook47\", \"easy\", \"greedy\", \"sorting\"]"}}, {"model": "core.problem", "pk": 275, "fields": {"code": "IDOLS", "name": "Idols and Fans", "author": "kostya_by", "contest_code": "COOK47", "contest_name": "June Cook-Off 2014", "contest_successful_submissions": 6, "contest_accuracy": 12.5, "tags": "[\"cook47\", \"hard\", \"heavy-light\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 276, "fields": {"code": "ANUSAR", "name": "Substrings and Repetitions", "author": "anudeep2011", "contest_code": "COOK46", "contest_name": "May Cook-Off 2014", "contest_successful_submissions": 24, "contest_accuracy": 14.035087719298, "tags": "[\"cook46\", \"disjoint-set\", \"medium-hard\", \"segment-tree\", \"stack\", \"suffix-array\", \"suffix-trees\"]"}}, {"model": "core.problem", "pk": 277, "fields": {"code": "ANUBGC", "name": "Book Game with Chef", "author": "anudeep2011", "contest_code": "COOK46", "contest_name": "May Cook-Off 2014", "contest_successful_submissions": 68, "contest_accuracy": 10.132158590308, "tags": "[\"cook46\", \"dynamic-programming\", \"easy-medium\"]"}}, {"model": "core.problem", "pk": 278, "fields": {"code": "ANUDTC", "name": "Divide the Cake", "author": "anudeep2011", "contest_code": "COOK46", "contest_name": "May Cook-Off 2014", "contest_successful_submissions": 1079, "contest_accuracy": 39.526669021547, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook46\"]"}}, {"model": "core.problem", "pk": 279, "fields": {"code": "ANUUND", "name": "Ups and Downs", "author": "anudeep2011", "contest_code": "COOK46", "contest_name": "May Cook-Off 2014", "contest_successful_submissions": 1331, "contest_accuracy": 56.040928768201, "tags": "[\"ad-hoc\", \"cook46\", \"easy\", \"sorting\"]"}}, {"model": "core.problem", "pk": 280, "fields": {"code": "ANUBTT", "name": "Build the Tree", "author": "anudeep2011", "contest_code": "COOK46", "contest_name": "May Cook-Off 2014", "contest_successful_submissions": 5, "contest_accuracy": 11.904761904762, "tags": "[\"cook46\", \"hard\", \"min-cost-flow\"]"}}, {"model": "core.problem", "pk": 281, "fields": {"code": "SNAPE", "name": "Snape and Ladder", "author": "vinay_adm", "contest_code": "COOK45", "contest_name": "April Cook-Off 2014", "contest_successful_submissions": 1506, "contest_accuracy": 75.464320625611, "tags": "[\"cakewalk\", \"cook45\", \"geometry\", \"implementation\"]"}}, {"model": "core.problem", "pk": 282, "fields": {"code": "LOGO", "name": "McHefs 3D Logo", "author": "vinay_adm", "contest_code": "COOK45", "contest_name": "April Cook-Off 2014", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook45\", \"geometry\", \"implementation\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 283, "fields": {"code": "BICO", "name": "BiCo Gaming Grid", "author": "vinay_adm", "contest_code": "COOK45", "contest_name": "April Cook-Off 2014", "contest_successful_submissions": 63, "contest_accuracy": 11.796733212341, "tags": "[\"combinatorics\", \"cook45\", \"greedy\", \"simple\"]"}}, {"model": "core.problem", "pk": 284, "fields": {"code": "TCP", "name": "Travelling Chef Problem", "author": "vinay_adm", "contest_code": "COOK45", "contest_name": "April Cook-Off 2014", "contest_successful_submissions": 37, "contest_accuracy": 9.1566265060241, "tags": "[\"cook45\", \"integrals\", \"interpolation\", \"medium\"]"}}, {"model": "core.problem", "pk": 285, "fields": {"code": "DIREL", "name": "Distant Relatives", "author": "vinay_adm", "contest_code": "COOK45", "contest_name": "April Cook-Off 2014", "contest_successful_submissions": 14, "contest_accuracy": 22.222222222222, "tags": "[\"ad-hoc\", \"cook45\", \"easy\", \"graph\"]"}}, {"model": "core.problem", "pk": 286, "fields": {"code": "DIVGAME", "name": "Game of Divisors", "author": "kostya_by", "contest_code": "COOK44", "contest_name": "March Cook-Off 2014", "contest_successful_submissions": 110, "contest_accuracy": 7.2869225764476, "tags": "[\"cook44\", \"easy-medium\", \"game-theory\"]"}}, {"model": "core.problem", "pk": 287, "fields": {"code": "ABCSTR", "name": "ABC-Strings", "author": "kostya_by", "contest_code": "COOK44", "contest_name": "March Cook-Off 2014", "contest_successful_submissions": 114, "contest_accuracy": 7.732293697206, "tags": "[\"ad-hoc\", \"cook44\", \"map\", \"simple\"]"}}, {"model": "core.problem", "pk": 288, "fields": {"code": "MINXOR", "name": "XOR Minimization", "author": "kostya_by", "contest_code": "COOK44", "contest_name": "March Cook-Off 2014", "contest_successful_submissions": 7, "contest_accuracy": 3.5532994923858, "tags": "[\"cook44\", \"decomposition\", \"medium\", \"sqrt\", \"trie\"]"}}, {"model": "core.problem", "pk": 289, "fields": {"code": "PALIN3", "name": "3-Palindromes", "author": "kostya_by", "contest_code": "COOK44", "contest_name": "March Cook-Off 2014", "contest_successful_submissions": 14, "contest_accuracy": 10.071942446043, "tags": "[\"cook44\", \"manacher\", \"medium\", \"string\"]"}}, {"model": "core.problem", "pk": 290, "fields": {"code": "DIVIDING", "name": "Dividing Stamps", "author": "kostya_by", "contest_code": "COOK44", "contest_name": "March Cook-Off 2014", "contest_successful_submissions": 1360, "contest_accuracy": 46.740188128446, "tags": "[\"cakewalk\", \"cook44\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 291, "fields": {"code": "REMISS", "name": "Chef and Remissness", "author": "shiplu_adm", "contest_code": "COOK43", "contest_name": "February Cook-Off 2014", "contest_successful_submissions": 1201, "contest_accuracy": 68.790496760259, "tags": "[\"cakewalk\", \"cook43\"]"}}, {"model": "core.problem", "pk": 292, "fields": {"code": "KINGSHIP", "name": "Chef and Kingship", "author": "shiplu_adm", "contest_code": "COOK43", "contest_name": "February Cook-Off 2014", "contest_successful_submissions": 882, "contest_accuracy": 43.530457981325, "tags": "[\"ad-hoc\", \"cook43\", \"graph\", \"simple\"]"}}, {"model": "core.problem", "pk": 293, "fields": {"code": "COTA", "name": "Chef of The Ancient", "author": "shiplu_adm", "contest_code": "COOK43", "contest_name": "February Cook-Off 2014", "contest_successful_submissions": 6, "contest_accuracy": 20.0, "tags": "[\"bitmasking\", \"cook43\", \"graph\", \"hard\", \"shortest-path\"]"}}, {"model": "core.problem", "pk": 294, "fields": {"code": "UNIQUE", "name": "Chef and Uniqueness", "author": "shiplu_adm", "contest_code": "COOK43", "contest_name": "February Cook-Off 2014", "contest_successful_submissions": 8, "contest_accuracy": 16.071428571429, "tags": "[\"cook43\", \"hard\", \"lcp\", \"segment-tree\", \"string\", \"suffix-array\"]"}}, {"model": "core.problem", "pk": 295, "fields": {"code": "LPAIR", "name": "Chef and Reunion", "author": "shiplu_adm", "contest_code": "COOK43", "contest_name": "February Cook-Off 2014", "contest_successful_submissions": 246, "contest_accuracy": 22.136817832437, "tags": "[\"bit\", \"cook43\", \"easy-medium\"]"}}, {"model": "core.problem", "pk": 296, "fields": {"code": "CAKE1AM", "name": "Chef and the Cake I", "author": "satej_adm", "contest_code": "COOK42", "contest_name": "January Cook-off 2014", "contest_successful_submissions": 864, "contest_accuracy": 24.594091030077, "tags": "[\"cakewalk\", \"cook42\", \"geometry\"]"}}, {"model": "core.problem", "pk": 297, "fields": {"code": "CAKE2AM", "name": "Chef and the Cake II", "author": "satej_adm", "contest_code": "COOK42", "contest_name": "January Cook-off 2014", "contest_successful_submissions": 1, "contest_accuracy": 4.7619047619048, "tags": "[\"bipartite\", \"cook42\", \"geometry\", \"max-indep-set\", \"maxflow\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 298, "fields": {"code": "ORDERAAM", "name": "Chef and the Orders", "author": "satej_adm", "contest_code": "COOK42", "contest_name": "January Cook-off 2014", "contest_successful_submissions": 3, "contest_accuracy": 2.4193548387097, "tags": "[\"cook42\", \"greedy\", \"hard\", \"min-cost-flow\"]"}}, {"model": "core.problem", "pk": 299, "fields": {"code": "GAMEAAM", "name": "Subtraction Game", "author": "satej_adm", "contest_code": "COOK42", "contest_name": "January Cook-off 2014", "contest_successful_submissions": 74, "contest_accuracy": 5.6060606060606, "tags": "[\"cook42\", \"easy\", \"game-theory\", \"sprague-grundy\"]"}}, {"model": "core.problem", "pk": 300, "fields": {"code": "GANGAAM", "name": "Interrogating Gangsters", "author": "satej_adm", "contest_code": "COOK42", "contest_name": "January Cook-off 2014", "contest_successful_submissions": 55, "contest_accuracy": 23.404255319149, "tags": "[\"cook42\", \"easy\", \"greedy\"]"}}, {"model": "core.problem", "pk": 301, "fields": {"code": "GERALD03", "name": "Chef Goes Through Segments", "author": "gerald", "contest_code": "COOK41", "contest_name": "December Cook-off 2013", "contest_successful_submissions": 264, "contest_accuracy": 30.194472876151, "tags": "[\"cook41\", \"easy\", \"greedy\"]"}}, {"model": "core.problem", "pk": 302, "fields": {"code": "GERALD04", "name": "Chef and Girlfriend", "author": "gerald", "contest_code": "COOK41", "contest_name": "December Cook-off 2013", "contest_successful_submissions": 657, "contest_accuracy": 33.333333333333, "tags": "[\"cook41\", \"easy\", \"programming\"]"}}, {"model": "core.problem", "pk": 303, "fields": {"code": "GERALD3", "name": "Chef and Substrings", "author": "gerald", "contest_code": "COOK41", "contest_name": "December Cook-off 2013", "contest_successful_submissions": 4, "contest_accuracy": 4.4943820224719, "tags": "[]"}}, {"model": "core.problem", "pk": 304, "fields": {"code": "GERALD05", "name": "Chef and Combinatorics", "author": "gerald", "contest_code": "COOK41", "contest_name": "December Cook-off 2013", "contest_successful_submissions": 28, "contest_accuracy": 56.0, "tags": "[\"combinatorics\", \"cook41\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 305, "fields": {"code": "GERALD06", "name": "Chef and Strange Graph", "author": "gerald", "contest_code": "COOK41", "contest_name": "December Cook-off 2013", "contest_successful_submissions": 2, "contest_accuracy": 22.222222222222, "tags": "[\"cook41\", \"medium\"]"}}, {"model": "core.problem", "pk": 306, "fields": {"code": "AMIFIB", "name": "Am I a Fibonacci Number", "author": "vineet_adm", "contest_code": "COOK40", "contest_name": "November Cook-off 2013", "contest_successful_submissions": 343, "contest_accuracy": 19.674887892377, "tags": "[\"binary-search\", \"cook40\", \"easy\", \"fibonacci\", \"hashing\", \"offline\"]"}}, {"model": "core.problem", "pk": 307, "fields": {"code": "LOWSUM", "name": "Lowest Sum", "author": "vineet_adm", "contest_code": "COOK40", "contest_name": "November Cook-off 2013", "contest_successful_submissions": 54, "contest_accuracy": 20.29520295203, "tags": "[\"binary-search\", \"cook40\", \"easy\", \"priority\", \"sorting\"]"}}, {"model": "core.problem", "pk": 308, "fields": {"code": "NUMPATH", "name": "Number of Paths", "author": "vineet_adm", "contest_code": "COOK40", "contest_name": "November Cook-off 2013", "contest_successful_submissions": 78, "contest_accuracy": 35.42600896861, "tags": "[\"cook40\", \"dynamic-programming\", \"fenwick\", \"medium\"]"}}, {"model": "core.problem", "pk": 309, "fields": {"code": "TRSUBTR", "name": "Trees and Subtrees", "author": "vineet_adm", "contest_code": "COOK40", "contest_name": "November Cook-off 2013", "contest_successful_submissions": 22, "contest_accuracy": 35.9375, "tags": "[\"cook40\", \"hashing\", \"kmp\", \"medium\"]"}}, {"model": "core.problem", "pk": 310, "fields": {"code": "NEXTNUM", "name": "Rank of the Number", "author": "vineet_adm", "contest_code": "COOK40", "contest_name": "November Cook-off 2013", "contest_successful_submissions": 163, "contest_accuracy": 21.55612244898, "tags": "[\"bruteforce\", \"cakewalk\", \"cook40\", \"enumeration\", \"factorial\"]"}}, {"model": "core.problem", "pk": 311, "fields": {"code": "PPLUCKY", "name": "Polo the Penguin and the Lucky String", "author": "witaliy_adm", "contest_code": "COOK39", "contest_name": "October Cook-Off 2013", "contest_successful_submissions": 62, "contest_accuracy": 6.1946902654867, "tags": "[\"bit\", \"cook39\", \"fenwick\", \"medium\", \"segment-tree\"]"}}, {"model": "core.problem", "pk": 312, "fields": {"code": "PPNUM", "name": "Polo the Penguin and the Numbers", "author": "witaliy_adm", "contest_code": "COOK39", "contest_name": "October Cook-Off 2013", "contest_successful_submissions": 705, "contest_accuracy": 19.397315776146, "tags": "[\"ad-hoc\", \"cook39\", \"easy\"]"}}, {"model": "core.problem", "pk": 313, "fields": {"code": "PPTEST", "name": "Polo the Penguin and the Test", "author": "witaliy_adm", "contest_code": "COOK39", "contest_name": "October Cook-Off 2013", "contest_successful_submissions": 896, "contest_accuracy": 41.501294219154, "tags": "[\"cook39\", \"dynamic-programming\", \"easy\"]"}}, {"model": "core.problem", "pk": 314, "fields": {"code": "PPXOR", "name": "Polo the Penguin and the XOR", "author": "witaliy_adm", "contest_code": "COOK39", "contest_name": "October Cook-Off 2013", "contest_successful_submissions": 133, "contest_accuracy": 16.40903686088, "tags": "[\"bitwise\", \"cook39\", \"easy-medium\", \"xor\"]"}}, {"model": "core.problem", "pk": 315, "fields": {"code": "PPTREE", "name": "Polo the Penguin and the Tree", "author": "witaliy_adm", "contest_code": "COOK39", "contest_name": "October Cook-Off 2013", "contest_successful_submissions": 18, "contest_accuracy": 15.384615384615, "tags": "[\"bitwise\", \"cook39\", \"dynamic-programming\", \"medium-hard\", \"trie\", \"xor\"]"}}, {"model": "core.problem", "pk": 316, "fields": {"code": "RRMATRIX", "name": "Strange Matrix", "author": "roman_adm", "contest_code": "COOK38", "contest_name": "September Cook-Off 2013", "contest_successful_submissions": 377, "contest_accuracy": 13.296844816484, "tags": "[\"basic-maths\", \"cook38\", \"simple\"]"}}, {"model": "core.problem", "pk": 317, "fields": {"code": "RRGAME", "name": "Game", "author": "roman_adm", "contest_code": "COOK38", "contest_name": "September Cook-Off 2013", "contest_successful_submissions": 62, "contest_accuracy": 12.648221343874, "tags": "[\"cook38\", \"medium\"]"}}, {"model": "core.problem", "pk": 318, "fields": {"code": "RRTREE", "name": "Tree", "author": "roman_adm", "contest_code": "COOK38", "contest_name": "September Cook-Off 2013", "contest_successful_submissions": 8, "contest_accuracy": 13.846153846154, "tags": "[\"bit\", \"cook38\", \"hard\", \"heavy-light\", \"segtree\", \"tree\"]"}}, {"model": "core.problem", "pk": 319, "fields": {"code": "RRCODE", "name": "Code", "author": "roman_adm", "contest_code": "COOK38", "contest_name": "September Cook-Off 2013", "contest_successful_submissions": 695, "contest_accuracy": 12.085899783586, "tags": "[\"cakewalk\", \"cook38\"]"}}, {"model": "core.problem", "pk": 320, "fields": {"code": "RRBIGNUM", "name": "Big Number", "author": "roman_adm", "contest_code": "COOK38", "contest_name": "September Cook-Off 2013", "contest_successful_submissions": 18, "contest_accuracy": 10.404624277457, "tags": "[\"cook38\", \"medium\", \"segment-trees\"]"}}, {"model": "core.problem", "pk": 321, "fields": {"code": "DFSGRID", "name": "Chef and The Recursive Algorithm", "author": "imran_adm", "contest_code": "COOK37", "contest_name": "August Cook-Off 2013", "contest_successful_submissions": 3, "contest_accuracy": 1.4354066985646, "tags": "[\"ad-hoc\", \"cook37\", \"implementation\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 322, "fields": {"code": "GRIDCOL", "name": "Chef and The Colored Grid", "author": "imran_adm", "contest_code": "COOK37", "contest_name": "August Cook-Off 2013", "contest_successful_submissions": 2, "contest_accuracy": 4.5454545454545, "tags": "[\"combinatorics\", \"cook37\", \"hard\", \"inclusn-exclusn\"]"}}, {"model": "core.problem", "pk": 323, "fields": {"code": "RIGHTRI", "name": "Chef and The Right Triangles", "author": "imran_adm", "contest_code": "COOK37", "contest_name": "August Cook-Off 2013", "contest_successful_submissions": 1383, "contest_accuracy": 46.118997281788, "tags": "[\"cook37\", \"easy\", \"geometry\"]"}}, {"model": "core.problem", "pk": 324, "fields": {"code": "DIVQUERY", "name": "Chef and The Divisibility Queries", "author": "imran_adm", "contest_code": "COOK37", "contest_name": "August Cook-Off 2013", "contest_successful_submissions": 111, "contest_accuracy": 4.6829672606714, "tags": "[\"cook37\", \"medium\", \"offline-process\"]"}}, {"model": "core.problem", "pk": 325, "fields": {"code": "STRDIG", "name": "Chef and The String of Digits", "author": "imran_adm", "contest_code": "COOK37", "contest_name": "August Cook-Off 2013", "contest_successful_submissions": 18, "contest_accuracy": 4.3280182232346, "tags": "[\"ad-hoc\", \"cook37\", \"easy-medium\", \"implementation\"]"}}, {"model": "core.problem", "pk": 326, "fields": {"code": "TACHSTCK", "name": "Chopsticks", "author": "tuan_adm", "contest_code": "COOK36", "contest_name": "July Cook-off 2013", "contest_successful_submissions": 907, "contest_accuracy": 38.723916532905, "tags": "[\"cakewalk\", \"cook36\", \"greedy\", \"sorting\"]"}}, {"model": "core.problem", "pk": 327, "fields": {"code": "TACHEMIS", "name": "Compressed String", "author": "tuan_adm", "contest_code": "COOK36", "contest_name": "July Cook-off 2013", "contest_successful_submissions": 38, "contest_accuracy": 8.0578512396694, "tags": "[\"cook36\", \"medium\", \"palindrome\", \"strings\"]"}}, {"model": "core.problem", "pk": 328, "fields": {"code": "TAAPLUSB", "name": "A Plus B Again!", "author": "tuan_adm", "contest_code": "COOK36", "contest_name": "July Cook-off 2013", "contest_successful_submissions": 400, "contest_accuracy": 41.318477251625, "tags": "[\"cook36\", \"easy\", \"maths\", \"probability\", \"tsaplusb\"]"}}, {"model": "core.problem", "pk": 329, "fields": {"code": "TASUFFIX", "name": "Very Long Suffix Array", "author": "tuan_adm", "contest_code": "COOK36", "contest_name": "July Cook-off 2013", "contest_successful_submissions": 1, "contest_accuracy": 26.666666666667, "tags": "[\"binary-tree\", \"cook36\", \"hard\", \"splay-tree\"]"}}, {"model": "core.problem", "pk": 330, "fields": {"code": "TAACUTE", "name": "Counting The Acute Triangles", "author": "tuan_adm", "contest_code": "COOK36", "contest_name": "July Cook-off 2013", "contest_successful_submissions": 14, "contest_accuracy": 2.755905511811, "tags": "[\"cook36\", \"easy-medium\", \"geometry\", \"sorting\"]"}}, {"model": "core.problem", "pk": 331, "fields": {"code": "ATTIC", "name": "Attic Crossing", "author": "prad_adm", "contest_code": "COOK35", "contest_name": "June Cook-Off 2013", "contest_successful_submissions": 866, "contest_accuracy": 47.137014314928, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook35\"]"}}, {"model": "core.problem", "pk": 332, "fields": {"code": "ALETHIO", "name": "Lyra and the Alethiometer", "author": "prad_adm", "contest_code": "COOK35", "contest_name": "June Cook-Off 2013", "contest_successful_submissions": 315, "contest_accuracy": 15.039701074264, "tags": "[\"ad-hoc\", \"cook35\", \"easy\"]"}}, {"model": "core.problem", "pk": 333, "fields": {"code": "TYTACTIC", "name": "Tywins Tactics", "author": "prad_adm", "contest_code": "COOK35", "contest_name": "June Cook-Off 2013", "contest_successful_submissions": 63, "contest_accuracy": 15.0, "tags": "[\"cook35\", \"dfs\", \"simple\"]"}}, {"model": "core.problem", "pk": 334, "fields": {"code": "TRANSFIG", "name": "Transfiguring Trees", "author": "prad_adm", "contest_code": "COOK35", "contest_name": "June Cook-Off 2013", "contest_successful_submissions": 15, "contest_accuracy": 26.785714285714, "tags": "[\"cook35\", \"medium\", \"tree\"]"}}, {"model": "core.problem", "pk": 335, "fields": {"code": "INVITES", "name": "Party Planning", "author": "prad_adm", "contest_code": "COOK35", "contest_name": "June Cook-Off 2013", "contest_successful_submissions": 28, "contest_accuracy": 15.384615384615, "tags": "[\"cook35\", \"medium\", \"tree-dp\"]"}}, {"model": "core.problem", "pk": 336, "fields": {"code": "AMROOK", "name": "Rook Placement", "author": "satej_adm", "contest_code": "COOK34", "contest_name": "May Cook-off 2013", "contest_successful_submissions": 8, "contest_accuracy": 27.586206896552, "tags": "[\"combinatorics\", \"cook34\", \"medium\"]"}}, {"model": "core.problem", "pk": 337, "fields": {"code": "AMXOR", "name": "XOR Sum", "author": "satej_adm", "contest_code": "COOK34", "contest_name": "May Cook-off 2013", "contest_successful_submissions": 16, "contest_accuracy": 34.782608695652, "tags": "[\"cook34\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 338, "fields": {"code": "AMSGAME1", "name": "Subtraction Game 1", "author": "satej_adm", "contest_code": "COOK34", "contest_name": "May Cook-off 2013", "contest_successful_submissions": 880, "contest_accuracy": 43.870082342177, "tags": "[\"cakewalk\", \"cook34\", \"gcd\"]"}}, {"model": "core.problem", "pk": 339, "fields": {"code": "AMSGAME2", "name": "Subtraction Game 2", "author": "satej_adm", "contest_code": "COOK34", "contest_name": "May Cook-off 2013", "contest_successful_submissions": 153, "contest_accuracy": 15.736040609137, "tags": "[\"cook34\", \"dynamic-programming\", \"simple\"]"}}, {"model": "core.problem", "pk": 340, "fields": {"code": "AMSEQT", "name": "Sequence Transmission", "author": "satej_adm", "contest_code": "COOK34", "contest_name": "May Cook-off 2013", "contest_successful_submissions": 39, "contest_accuracy": 38.235294117647, "tags": "[\"bit\", \"cook34\", \"dynamic-programming\", \"easy\"]"}}, {"model": "core.problem", "pk": 341, "fields": {"code": "LEFEED", "name": "Andrew and the Birthday", "author": "witaliy_adm", "contest_code": "COOK33", "contest_name": "April Cook-Off 2013", "contest_successful_submissions": 50, "contest_accuracy": 25.252525252525, "tags": "[\"cook33\", \"medium\", \"probability\"]"}}, {"model": "core.problem", "pk": 342, "fields": {"code": "AMMEAT", "name": "Andrew and the Meatballs", "author": "witaliy_adm", "contest_code": "COOK33", "contest_name": "April Cook-Off 2013", "contest_successful_submissions": 902, "contest_accuracy": 30.121638924456, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook33\", \"sorting\"]"}}, {"model": "core.problem", "pk": 343, "fields": {"code": "AMSTRING", "name": "Andrew and the Strings", "author": "witaliy_adm", "contest_code": "COOK33", "contest_name": "April Cook-Off 2013", "contest_successful_submissions": 109, "contest_accuracy": 14.965986394558, "tags": "[\"cook33\", \"easy\", \"sliding-window\", \"strings\"]"}}, {"model": "core.problem", "pk": 344, "fields": {"code": "AMBALLS", "name": "Andrew and the Balls", "author": "witaliy_adm", "contest_code": "COOK33", "contest_name": "April Cook-Off 2013", "contest_successful_submissions": 12, "contest_accuracy": 19.354838709677, "tags": "[\"cook33\", \"dynamic-programming\", \"medium\"]"}}, {"model": "core.problem", "pk": 345, "fields": {"code": "AMMEAT2", "name": "Andrew and the Meatballs again", "author": "witaliy_adm", "contest_code": "COOK33", "contest_name": "April Cook-Off 2013", "contest_successful_submissions": 600, "contest_accuracy": 34.428969359331, "tags": "[\"ad-hoc\", \"cook33\", \"simple\"]"}}, {"model": "core.problem", "pk": 346, "fields": {"code": "TAVISUAL", "name": "The Ball And Cups", "author": "tuan_adm", "contest_code": "COOK32", "contest_name": "March Cook-off 2013", "contest_successful_submissions": 867, "contest_accuracy": 44.444444444444, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook32\"]"}}, {"model": "core.problem", "pk": 347, "fields": {"code": "TAPALIN", "name": "Palindrome", "author": "tuan_adm", "contest_code": "COOK32", "contest_name": "March Cook-off 2013", "contest_successful_submissions": 380, "contest_accuracy": 26.930693069307, "tags": "[\"cook32\", \"matrix-expo\", \"modulo\", \"simple\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 348, "fields": {"code": "TABUS", "name": "Traveling Plan", "author": "tuan_adm", "contest_code": "COOK32", "contest_name": "March Cook-off 2013", "contest_successful_submissions": 28, "contest_accuracy": 8.7227414330218, "tags": "[\"binary-search\", \"cook32\", \"dynamic-programming\", \"easy-medium\", \"graph\"]"}}, {"model": "core.problem", "pk": 349, "fields": {"code": "TASTR", "name": "Level Of Difference", "author": "tuan_adm", "contest_code": "COOK32", "contest_name": "March Cook-off 2013", "contest_successful_submissions": 31, "contest_accuracy": 12.167300380228, "tags": "[\"cook32\", \"easy-medium\", \"lcp\", \"string\", \"suffix-array\"]"}}, {"model": "core.problem", "pk": 350, "fields": {"code": "TABISHOP", "name": "Bishops", "author": "tuan_adm", "contest_code": "COOK32", "contest_name": "March Cook-off 2013", "contest_successful_submissions": 5, "contest_accuracy": 5.1546391752577, "tags": "[\"ad-hoc\", \"cook32\", \"line-sweep\", \"medium-hard\", \"order-statistic\"]"}}, {"model": "core.problem", "pk": 351, "fields": {"code": "NOLOGIC", "name": "Lack of Logic", "author": "anton_adm", "contest_code": "COOK31", "contest_name": "February Cook-Off 2013", "contest_successful_submissions": 683, "contest_accuracy": 40.618722378465, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook31\"]"}}, {"model": "core.problem", "pk": 352, "fields": {"code": "ROWCOLOP", "name": "Row and Column Operations", "author": "anton_adm", "contest_code": "COOK31", "contest_name": "February Cook-Off 2013", "contest_successful_submissions": 732, "contest_accuracy": 42.479595802565, "tags": "[\"cook31\", \"simple\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 353, "fields": {"code": "CHEFHCK2", "name": "End Of The World 2", "author": "anton_adm", "contest_code": "COOK31", "contest_name": "February Cook-Off 2013", "contest_successful_submissions": 17, "contest_accuracy": 10.857142857143, "tags": "[\"binary-search\", \"cook31\", \"easy\"]"}}, {"model": "core.problem", "pk": 354, "fields": {"code": "MINWDSUM", "name": "Minimal Weighted Digit Sum", "author": "anton_adm", "contest_code": "COOK31", "contest_name": "February Cook-Off 2013", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"bfs\", \"cook31\", \"medium\"]"}}, {"model": "core.problem", "pk": 355, "fields": {"code": "HOB2", "name": "Hotel Balifornia 2", "author": "anton_adm", "contest_code": "COOK31", "contest_name": "February Cook-Off 2013", "contest_successful_submissions": 84, "contest_accuracy": 26.126126126126, "tags": "[\"cook31\", \"easy\", \"greedy\"]"}}, {"model": "core.problem", "pk": 356, "fields": {"code": "CIELDIST", "name": "Minimum Distance", "author": "hiroto_adm", "contest_code": "COOK30", "contest_name": "January Cook-Off 2013", "contest_successful_submissions": 601, "contest_accuracy": 15.058309037901, "tags": "[\"cakewalk\", \"cook30\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 357, "fields": {"code": "MANYCHEF", "name": "Many Chefs", "author": "hiroto_adm", "contest_code": "COOK30", "contest_name": "January Cook-Off 2013", "contest_successful_submissions": 482, "contest_accuracy": 26.274362818591, "tags": "[\"cook30\", \"greedy\", \"simple\"]"}}, {"model": "core.problem", "pk": 358, "fields": {"code": "DEFACING", "name": "Defacing Score", "author": "hiroto_adm", "contest_code": "COOK30", "contest_name": "January Cook-Off 2013", "contest_successful_submissions": 43, "contest_accuracy": 12.876712328767, "tags": "[\"cook30\", \"easy\", \"greedy\"]"}}, {"model": "core.problem", "pk": 359, "fields": {"code": "AVDWAST", "name": "Avoid Wasting", "author": "hiroto_adm", "contest_code": "COOK30", "contest_name": "January Cook-Off 2013", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook30\", \"greedy\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 360, "fields": {"code": "CIELKARA", "name": "Ciel and Karaoke", "author": "hiroto_adm", "contest_code": "COOK30", "contest_name": "January Cook-Off 2013", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook30\", \"math\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 361, "fields": {"code": "GRIDGAME", "name": "Game on a Grid", "author": "david_adm", "contest_code": "COOK29", "contest_name": "December Cook-Off 2012", "contest_successful_submissions": 1, "contest_accuracy": 3.8461538461538, "tags": "[\"cook29\", \"game\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 362, "fields": {"code": "EXGCD", "name": "Expected Greatest Common Divisor", "author": "david_adm", "contest_code": "COOK29", "contest_name": "December Cook-Off 2012", "contest_successful_submissions": 34, "contest_accuracy": 32.110091743119, "tags": "[\"cook29\", \"easy-medium\", \"number-theory\"]"}}, {"model": "core.problem", "pk": 363, "fields": {"code": "TREEROOT", "name": "Root of the Problem", "author": "david_adm", "contest_code": "COOK29", "contest_name": "December Cook-Off 2012", "contest_successful_submissions": 81, "contest_accuracy": 13.548387096774, "tags": "[\"cook29\", \"simple-easy\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 364, "fields": {"code": "MUFFINS3", "name": "Packaging Cupcakes", "author": "david_adm", "contest_code": "COOK29", "contest_name": "December Cook-Off 2012", "contest_successful_submissions": 1014, "contest_accuracy": 62.576346474181, "tags": "[\"cakewalk\", \"cook29\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 365, "fields": {"code": "DIRECTI", "name": "Reversing directions", "author": "david_adm", "contest_code": "COOK29", "contest_name": "December Cook-Off 2012", "contest_successful_submissions": 731, "contest_accuracy": 52.888583218707, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook29\"]"}}, {"model": "core.problem", "pk": 366, "fields": {"code": "LEMAGIC", "name": "Little Elephant and Magic", "author": "witaliy_adm", "contest_code": "COOK28", "contest_name": "November Cook-Off 2012", "contest_successful_submissions": 39, "contest_accuracy": 20.20202020202, "tags": "[\"cook28\", \"dynamic-programming\", \"easy\"]"}}, {"model": "core.problem", "pk": 367, "fields": {"code": "LELUCKYN", "name": "Little Elephant and Lucky Segment", "author": "witaliy_adm", "contest_code": "COOK28", "contest_name": "November Cook-Off 2012", "contest_successful_submissions": 6, "contest_accuracy": 4.6875, "tags": "[\"binary-search\", \"cook28\", \"maths\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 368, "fields": {"code": "LEPAPER", "name": "Little Elephant and Sheet", "author": "witaliy_adm", "contest_code": "COOK28", "contest_name": "November Cook-Off 2012", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook28\", \"dynamic-programming\", \"hard\", \"matrix-expo\"]"}}, {"model": "core.problem", "pk": 369, "fields": {"code": "LEPERMUT", "name": "Little Elephant and Permutations", "author": "witaliy_adm", "contest_code": "COOK28", "contest_name": "November Cook-Off 2012", "contest_successful_submissions": 596, "contest_accuracy": 76.477832512315, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook28\"]"}}, {"model": "core.problem", "pk": 370, "fields": {"code": "LEDIV", "name": "Little Elephant and Divisors", "author": "witaliy_adm", "contest_code": "COOK28", "contest_name": "November Cook-Off 2012", "contest_successful_submissions": 306, "contest_accuracy": 10.803689064559, "tags": "[\"cook28\", \"simple\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 371, "fields": {"code": "BUYING2", "name": "Buying Sweets", "author": "gennady_adm", "contest_code": "COOK27", "contest_name": "October Cook-Off 2012", "contest_successful_submissions": 1269, "contest_accuracy": 45.009185548071, "tags": "[\"ad-hoc\", \"cook27\"]"}}, {"model": "core.problem", "pk": 372, "fields": {"code": "EQUALIZ", "name": "Equalization", "author": "gennady_adm", "contest_code": "COOK27", "contest_name": "October Cook-Off 2012", "contest_successful_submissions": 133, "contest_accuracy": 32.394366197183, "tags": "[\"cook27\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 373, "fields": {"code": "REARRAN", "name": "Rearrangement", "author": "gennady_adm", "contest_code": "COOK27", "contest_name": "October Cook-Off 2012", "contest_successful_submissions": 1, "contest_accuracy": 0.68493150684932, "tags": "[\"bruteforce\", \"cook27\", \"meet-in-middle\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 374, "fields": {"code": "TOURNAM", "name": "Tennis Tournament", "author": "gennady_adm", "contest_code": "COOK27", "contest_name": "October Cook-Off 2012", "contest_successful_submissions": 151, "contest_accuracy": 31.274131274131, "tags": "[\"cook27\", \"dynamic-programming\", \"probability\"]"}}, {"model": "core.problem", "pk": 375, "fields": {"code": "TREEFUN", "name": "Tree Fun", "author": "gennady_adm", "contest_code": "COOK27", "contest_name": "October Cook-Off 2012", "contest_successful_submissions": 14, "contest_accuracy": 9.7222222222222, "tags": "[\"cook27\", \"graph\", \"lca\"]"}}, {"model": "core.problem", "pk": 376, "fields": {"code": "PTOSS", "name": "Pizza Tossing", "author": "nikhil_adm", "contest_code": "COOK26", "contest_name": "September Cook-Off 2012", "contest_successful_submissions": 12, "contest_accuracy": 14.814814814815, "tags": "[\"cook26\", \"kmp\", \"medium-hard\"]"}}, {"model": "core.problem", "pk": 377, "fields": {"code": "PPERM", "name": "Prime Permutations", "author": "nikhil_adm", "contest_code": "COOK26", "contest_name": "September Cook-Off 2012", "contest_successful_submissions": 155, "contest_accuracy": 19.581280788177, "tags": "[\"cook26\", \"easy\", \"sieve\"]"}}, {"model": "core.problem", "pk": 378, "fields": {"code": "RRECIPE", "name": "Recipe Reconstruction", "author": "nikhil_adm", "contest_code": "COOK26", "contest_name": "September Cook-Off 2012", "contest_successful_submissions": 769, "contest_accuracy": 35.209580838323, "tags": "[\"cook26\", \"simple\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 379, "fields": {"code": "CARVANS", "name": "Carvans", "author": "nikhil_adm", "contest_code": "COOK26", "contest_name": "September Cook-Off 2012", "contest_successful_submissions": 1093, "contest_accuracy": 39.00259440761, "tags": "[\"cakewalk\", \"cook26\", \"simple-math\"]"}}, {"model": "core.problem", "pk": 380, "fields": {"code": "COALSCAM", "name": "Coal Scam", "author": "nikhil_adm", "contest_code": "COOK26", "contest_name": "September Cook-Off 2012", "contest_successful_submissions": 138, "contest_accuracy": 24.350649350649, "tags": "[\"cook26\", \"easy\", \"kruskal\"]"}}, {"model": "core.problem", "pk": 381, "fields": {"code": "UNFRIEND", "name": "Rebuilding Byteland", "author": "shilp_adm", "contest_code": "COOK25", "contest_name": "August Cook-Off 2012", "contest_successful_submissions": 17, "contest_accuracy": 50.0, "tags": "[\"colouring\", \"cook25\", \"gauss-elim\", \"graph\"]"}}, {"model": "core.problem", "pk": 382, "fields": {"code": "CHEFPASS", "name": "Codechef Password Recovery", "author": "shilp_adm", "contest_code": "COOK25", "contest_name": "August Cook-Off 2012", "contest_successful_submissions": 34, "contest_accuracy": 30.252100840336, "tags": "[\"cook25\", \"euler-tour\", \"graph\"]"}}, {"model": "core.problem", "pk": 383, "fields": {"code": "YNOUTPUT", "name": "Forced Output", "author": "shilp_adm", "contest_code": "COOK25", "contest_name": "August Cook-Off 2012", "contest_successful_submissions": 237, "contest_accuracy": 19.678714859438, "tags": "[\"ad-hoc\", \"cook25\"]"}}, {"model": "core.problem", "pk": 384, "fields": {"code": "NOCODING", "name": "Code Crazy Minions", "author": "shilp_adm", "contest_code": "COOK25", "contest_name": "August Cook-Off 2012", "contest_successful_submissions": 835, "contest_accuracy": 47.687861271676, "tags": "[\"cook25\", \"greedy\"]"}}, {"model": "core.problem", "pk": 385, "fields": {"code": "LEBINARY", "name": "Asmany Number Verification", "author": "shilp_adm", "contest_code": "COOK25", "contest_name": "August Cook-Off 2012", "contest_successful_submissions": 46, "contest_accuracy": 12.82722513089, "tags": "[\"bignum\", \"cook25\", \"maths\"]"}}, {"model": "core.problem", "pk": 386, "fields": {"code": "CIELRCPT", "name": "Ciel and Receipt", "author": "hiroto_adm", "contest_code": "COOK24", "contest_name": "July Cook-Off 2012", "contest_successful_submissions": 928, "contest_accuracy": 61.884498480243, "tags": "[\"cakewalk\", \"cook24\", \"greedy\"]"}}, {"model": "core.problem", "pk": 387, "fields": {"code": "CIELBALL", "name": "Ciel and Ball Guessing Game", "author": "hiroto_adm", "contest_code": "COOK24", "contest_name": "July Cook-Off 2012", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"binary-search\", \"cook24\", \"dynamic-programming\", \"hard\"]"}}, {"model": "core.problem", "pk": 388, "fields": {"code": "CIELMAP", "name": "Ciel and Map", "author": "hiroto_adm", "contest_code": "COOK24", "contest_name": "July Cook-Off 2012", "contest_successful_submissions": 116, "contest_accuracy": 20.27027027027, "tags": "[\"cook24\", \"easy\", \"geometry\"]"}}, {"model": "core.problem", "pk": 389, "fields": {"code": "CIELNUM3", "name": "Ciel Numbers III", "author": "hiroto_adm", "contest_code": "COOK24", "contest_name": "July Cook-Off 2012", "contest_successful_submissions": 1, "contest_accuracy": 1.4925373134328, "tags": "[\"cook24\", \"medium\"]"}}, {"model": "core.problem", "pk": 390, "fields": {"code": "CIELTOMY", "name": "Ciel and Tomya", "author": "hiroto_adm", "contest_code": "COOK24", "contest_name": "July Cook-Off 2012", "contest_successful_submissions": 229, "contest_accuracy": 18.139171227522, "tags": "[\"backtracking\", \"cook24\", \"simple\"]"}}, {"model": "core.problem", "pk": 391, "fields": {"code": "TWTCLOSE", "name": "Closing the Tweets", "author": "anil_adm", "contest_code": "COOK23", "contest_name": "June Cook-Off 2012", "contest_successful_submissions": 667, "contest_accuracy": 41.238839285714, "tags": "[\"array-string\", \"cakewalk\", \"cook23\"]"}}, {"model": "core.problem", "pk": 392, "fields": {"code": "NOKIA", "name": "Connecting Soldiers", "author": "anil_adm", "contest_code": "COOK23", "contest_name": "June Cook-Off 2012", "contest_successful_submissions": 239, "contest_accuracy": 44.097222222222, "tags": "[\"cook23\", \"recursion\", \"simple\"]"}}, {"model": "core.problem", "pk": 393, "fields": {"code": "GROWGOLD", "name": "Golden Trees", "author": "anil_adm", "contest_code": "COOK23", "contest_name": "June Cook-Off 2012", "contest_successful_submissions": 30, "contest_accuracy": 7.2815533980583, "tags": "[\"cook23\", \"easy\"]"}}, {"model": "core.problem", "pk": 394, "fields": {"code": "OLYMPIC", "name": "Gifts at Olympics", "author": "anil_adm", "contest_code": "COOK23", "contest_name": "June Cook-Off 2012", "contest_successful_submissions": 10, "contest_accuracy": 15.625, "tags": "[\"cook23\", \"easy\"]"}}, {"model": "core.problem", "pk": 395, "fields": {"code": "DOWNLOAD", "name": "Alien Chefs", "author": "anil_adm", "contest_code": "COOK23", "contest_name": "June Cook-Off 2012", "contest_successful_submissions": 16, "contest_accuracy": 3.448275862069, "tags": "[\"bit\", \"cook23\", \"medium\", \"sorting\"]"}}, {"model": "core.problem", "pk": 396, "fields": {"code": "LUCKFILL", "name": "Little Elephant and Filling", "author": "witaliy_adm", "contest_code": "COOK22", "contest_name": "May Cook-Off 2012", "contest_successful_submissions": 8, "contest_accuracy": 4.1237113402062, "tags": "[\"cook22\", \"medium\"]"}}, {"model": "core.problem", "pk": 397, "fields": {"code": "LUCKYBAL", "name": "Little Elephant and Balance", "author": "witaliy_adm", "contest_code": "COOK22", "contest_name": "May Cook-Off 2012", "contest_successful_submissions": 141, "contest_accuracy": 28.375733855186, "tags": "[\"cook22\", \"easy\"]"}}, {"model": "core.problem", "pk": 398, "fields": {"code": "LUCKYSWP", "name": "Little Elephant and Swapping", "author": "witaliy_adm", "contest_code": "COOK22", "contest_name": "May Cook-Off 2012", "contest_successful_submissions": 42, "contest_accuracy": 29.139072847682, "tags": "[\"cook22\", \"medium\"]"}}, {"model": "core.problem", "pk": 399, "fields": {"code": "LUCKYSTR", "name": "Little Elephant and Strings", "author": "witaliy_adm", "contest_code": "COOK22", "contest_name": "May Cook-Off 2012", "contest_successful_submissions": 597, "contest_accuracy": 47.404063205418, "tags": "[\"cook22\", \"easy\"]"}}, {"model": "core.problem", "pk": 400, "fields": {"code": "LUCKYCOM", "name": "Little Elephant and CNSes", "author": "witaliy_adm", "contest_code": "COOK22", "contest_name": "May Cook-Off 2012", "contest_successful_submissions": 3, "contest_accuracy": 21.428571428571, "tags": "[\"cook22\", \"medium\"]"}}, {"model": "core.problem", "pk": 401, "fields": {"code": "TRAINING", "name": "Selection for Training Camps", "author": "anil_adm", "contest_code": "COOK21", "contest_name": "April Cook-Off 2012", "contest_successful_submissions": 37, "contest_accuracy": 19.191919191919, "tags": "[\"cook21\", \"medium\"]"}}, {"model": "core.problem", "pk": 402, "fields": {"code": "BESTBATS", "name": "Top Batsmen", "author": "anil_adm", "contest_code": "COOK21", "contest_name": "April Cook-Off 2012", "contest_successful_submissions": 576, "contest_accuracy": 49.671052631579, "tags": "[\"cook21\", \"easy\"]"}}, {"model": "core.problem", "pk": 403, "fields": {"code": "PAINTING", "name": "Crease Painting", "author": "anil_adm", "contest_code": "COOK21", "contest_name": "April Cook-Off 2012", "contest_successful_submissions": 56, "contest_accuracy": 31.284916201117, "tags": "[\"cook21\", \"medium\"]"}}, {"model": "core.problem", "pk": 404, "fields": {"code": "RESIST", "name": "Resistance", "author": "anil_adm", "contest_code": "COOK21", "contest_name": "April Cook-Off 2012", "contest_successful_submissions": 237, "contest_accuracy": 30.193236714976, "tags": "[\"cook21\", \"easy\"]"}}, {"model": "core.problem", "pk": 405, "fields": {"code": "TMRATING", "name": "Best Buggy Ratings", "author": "anil_adm", "contest_code": "COOK21", "contest_name": "April Cook-Off 2012", "contest_successful_submissions": 22, "contest_accuracy": 46.153846153846, "tags": "[\"cook21\", \"medium\"]"}}, {"model": "core.problem", "pk": 406, "fields": {"code": "CIELNUM1", "name": "Ciel Numbers I", "author": "hiroto_adm", "contest_code": "COOK20", "contest_name": "March Cook-Off 2012", "contest_successful_submissions": 148, "contest_accuracy": 20.080862533693, "tags": "[\"cook20\", \"easy\"]"}}, {"model": "core.problem", "pk": 407, "fields": {"code": "CIELNUM2", "name": "Ciel Numbers II", "author": "hiroto_adm", "contest_code": "COOK20", "contest_name": "March Cook-Off 2012", "contest_successful_submissions": 304, "contest_accuracy": 16.447368421053, "tags": "[\"cook20\", \"easy\"]"}}, {"model": "core.problem", "pk": 408, "fields": {"code": "CIELGAME", "name": "Ciel and Genjiko", "author": "hiroto_adm", "contest_code": "COOK20", "contest_name": "March Cook-Off 2012", "contest_successful_submissions": 7, "contest_accuracy": 11.475409836066, "tags": "[\"cook20\", \"medium\"]"}}, {"model": "core.problem", "pk": 409, "fields": {"code": "CIELWEB", "name": "Ciel and Communications System", "author": "hiroto_adm", "contest_code": "COOK20", "contest_name": "March Cook-Off 2012", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook20\", \"hard\"]"}}, {"model": "core.problem", "pk": 410, "fields": {"code": "CIELLAND", "name": "Ciel and a new island", "author": "hiroto_adm", "contest_code": "COOK20", "contest_name": "March Cook-Off 2012", "contest_successful_submissions": 19, "contest_accuracy": 19.791666666667, "tags": "[\"cook20\", \"medium\"]"}}, {"model": "core.problem", "pk": 411, "fields": {"code": "AUTHEN", "name": "Authentication Failed", "author": "gennady_adm", "contest_code": "COOK19", "contest_name": "February 2012 Cook-off", "contest_successful_submissions": 8, "contest_accuracy": 7.843137254902, "tags": "[\"cook19\", \"hard\"]"}}, {"model": "core.problem", "pk": 412, "fields": {"code": "BEARS", "name": "Bears and Bees", "author": "gennady_adm", "contest_code": "COOK19", "contest_name": "February 2012 Cook-off", "contest_successful_submissions": 18, "contest_accuracy": 16.964285714286, "tags": "[\"cook19\", \"hard\"]"}}, {"model": "core.problem", "pk": 413, "fields": {"code": "CAREFUL", "name": "Careful Calculation", "author": "gennady_adm", "contest_code": "COOK19", "contest_name": "February 2012 Cook-off", "contest_successful_submissions": 24, "contest_accuracy": 12.631578947368, "tags": "[\"cook19\", \"medium\"]"}}, {"model": "core.problem", "pk": 414, "fields": {"code": "DAILY", "name": "Daily Train", "author": "gennady_adm", "contest_code": "COOK19", "contest_name": "February 2012 Cook-off", "contest_successful_submissions": 445, "contest_accuracy": 46.336633663366, "tags": "[\"cook19\", \"easy\"]"}}, {"model": "core.problem", "pk": 415, "fields": {"code": "EQUATIO", "name": "Equation Solver", "author": "gennady_adm", "contest_code": "COOK19", "contest_name": "February 2012 Cook-off", "contest_successful_submissions": 36, "contest_accuracy": 14.624505928854, "tags": "[\"cook19\", \"medium\"]"}}, {"model": "core.problem", "pk": 416, "fields": {"code": "COLLIDE", "name": "Collision in Space", "author": "anil_adm", "contest_code": "COOK18", "contest_name": "January Cook-Off", "contest_successful_submissions": 217, "contest_accuracy": 17.977528089888, "tags": "[\"cook18\", \"easy\"]"}}, {"model": "core.problem", "pk": 417, "fields": {"code": "KSUBSUM", "name": "Makx Sum", "author": "anil_adm", "contest_code": "COOK18", "contest_name": "January Cook-Off", "contest_successful_submissions": 55, "contest_accuracy": 12.222222222222, "tags": "[\"cook18\", \"easy\"]"}}, {"model": "core.problem", "pk": 418, "fields": {"code": "FALLDOWN", "name": "Remys last tour", "author": "anil_adm", "contest_code": "COOK18", "contest_name": "January Cook-Off", "contest_successful_submissions": 15, "contest_accuracy": 28.571428571429, "tags": "[\"cook18\", \"medium\"]"}}, {"model": "core.problem", "pk": 419, "fields": {"code": "FLOORSMV", "name": "Moving between Floors", "author": "anil_adm", "contest_code": "COOK18", "contest_name": "January Cook-Off", "contest_successful_submissions": 9, "contest_accuracy": 42.857142857143, "tags": "[\"cook18\", \"medium\"]"}}, {"model": "core.problem", "pk": 420, "fields": {"code": "TAKEAWAY", "name": "Zeta-Nim Game", "author": "anil_adm", "contest_code": "COOK18", "contest_name": "January Cook-Off", "contest_successful_submissions": 32, "contest_accuracy": 21.656050955414, "tags": "[\"cook18\", \"medium\", \"takeway\"]"}}, {"model": "core.problem", "pk": 421, "fields": {"code": "CIEL8STR", "name": "Ciel and New Menu", "author": "hiroto_adm", "contest_code": "COOK17", "contest_name": "December Cook-Off", "contest_successful_submissions": 216, "contest_accuracy": 10.597572362278, "tags": "[\"cook17\", \"easy\"]"}}, {"model": "core.problem", "pk": 422, "fields": {"code": "CIELQUIZ", "name": "Ciel and Quiz Game", "author": "hiroto_adm", "contest_code": "COOK17", "contest_name": "December Cook-Off", "contest_successful_submissions": 19, "contest_accuracy": 5.9375, "tags": "[\"cook17\", \"medium\"]"}}, {"model": "core.problem", "pk": 423, "fields": {"code": "CIELAB", "name": "Ciel and A-B Problem", "author": "hiroto_adm", "contest_code": "COOK17", "contest_name": "December Cook-Off", "contest_successful_submissions": 642, "contest_accuracy": 44.345047923323, "tags": "[\"cook17\", \"easy\"]"}}, {"model": "core.problem", "pk": 424, "fields": {"code": "CIELBTL", "name": "Ciel and Battle Arena", "author": "hiroto_adm", "contest_code": "COOK17", "contest_name": "December Cook-Off", "contest_successful_submissions": 12, "contest_accuracy": 20.689655172414, "tags": "[\"cook17\", \"medium\"]"}}, {"model": "core.problem", "pk": 425, "fields": {"code": "CIELWALK", "name": "Ciel and Random Walk", "author": "hiroto_adm", "contest_code": "COOK17", "contest_name": "December Cook-Off", "contest_successful_submissions": 1, "contest_accuracy": 1.5151515151515, "tags": "[\"cook17\", \"hard\"]"}}, {"model": "core.problem", "pk": 426, "fields": {"code": "COLCHAIN", "name": "Colorful Chain", "author": "gennady_adm", "contest_code": "COOK16", "contest_name": "November Cook-Off", "contest_successful_submissions": 23, "contest_accuracy": 45.283018867925, "tags": "[\"cook16\", \"medium\"]"}}, {"model": "core.problem", "pk": 427, "fields": {"code": "MVCOIN", "name": "Moving Coins", "author": "gennady_adm", "contest_code": "COOK16", "contest_name": "November Cook-Off", "contest_successful_submissions": 117, "contest_accuracy": 30.024813895782, "tags": "[\"cook16\", \"easy\"]"}}, {"model": "core.problem", "pk": 428, "fields": {"code": "SUBANAGR", "name": "Subanagrams", "author": "gennady_adm", "contest_code": "COOK16", "contest_name": "November Cook-Off", "contest_successful_submissions": 250, "contest_accuracy": 52.727272727273, "tags": "[\"cook16\", \"easy\"]"}}, {"model": "core.problem", "pk": 429, "fields": {"code": "GRAPLANE", "name": "Graph on a Plane", "author": "gennady_adm", "contest_code": "COOK16", "contest_name": "November Cook-Off", "contest_successful_submissions": 13, "contest_accuracy": 18.840579710145, "tags": "[\"cook16\", \"medium\"]"}}, {"model": "core.problem", "pk": 430, "fields": {"code": "BUYING", "name": "Buying Candies", "author": "gennady_adm", "contest_code": "COOK16", "contest_name": "November Cook-Off", "contest_successful_submissions": 2, "contest_accuracy": 4.0, "tags": "[\"cook16\", \"medium\"]"}}, {"model": "core.problem", "pk": 431, "fields": {"code": "GENARSEQ", "name": "Generalized Arithmetic Progression Free Sequence", "author": "anton_adm", "contest_code": "COOK15", "contest_name": "October Cook-off", "contest_successful_submissions": 99, "contest_accuracy": 11.724915445321, "tags": "[\"cook15\", \"easy\"]"}}, {"model": "core.problem", "pk": 432, "fields": {"code": "PERMDIG", "name": "Permute Digits", "author": "anton_adm", "contest_code": "COOK15", "contest_name": "October Cook-off", "contest_successful_submissions": 10, "contest_accuracy": 17.857142857143, "tags": "[\"cook15\", \"medium\"]"}}, {"model": "core.problem", "pk": 433, "fields": {"code": "LAMQUGAM", "name": "Lame Queen Game", "author": "anton_adm", "contest_code": "COOK15", "contest_name": "October Cook-off", "contest_successful_submissions": 3, "contest_accuracy": 15.0, "tags": "[\"cook15\", \"hard\"]"}}, {"model": "core.problem", "pk": 434, "fields": {"code": "NONPALIN", "name": "First non-Palindrome", "author": "anton_adm", "contest_code": "COOK15", "contest_name": "October Cook-off", "contest_successful_submissions": 16, "contest_accuracy": 20.779220779221, "tags": "[\"cook15\", \"medium\"]"}}, {"model": "core.problem", "pk": 435, "fields": {"code": "TRAVELER", "name": "Chef Travel Routes", "author": "anton_adm", "contest_code": "COOK15", "contest_name": "October Cook-off", "contest_successful_submissions": 192, "contest_accuracy": 35.115864527629, "tags": "[\"cook15\", \"easy\"]"}}, {"model": "core.problem", "pk": 436, "fields": {"code": "LASTDIG", "name": "Last Digit Sum", "author": "david_adm", "contest_code": "COOK14", "contest_name": "September Cook-off", "contest_successful_submissions": 110, "contest_accuracy": 18.43853820598, "tags": "[\"cook14\", \"easy\"]"}}, {"model": "core.problem", "pk": 437, "fields": {"code": "DIGROT", "name": "Digit Rotation", "author": "david_adm", "contest_code": "COOK14", "contest_name": "September Cook-off", "contest_successful_submissions": 161, "contest_accuracy": 14.335664335664, "tags": "[\"cook14\", \"easy\"]"}}, {"model": "core.problem", "pk": 438, "fields": {"code": "TARPRACT", "name": "Target Practice", "author": "david_adm", "contest_code": "COOK14", "contest_name": "September Cook-off", "contest_successful_submissions": 8, "contest_accuracy": 3.9408866995074, "tags": "[\"cook14\", \"medium\"]"}}, {"model": "core.problem", "pk": 439, "fields": {"code": "YASEQ", "name": "Yet Another Sequence", "author": "david_adm", "contest_code": "COOK14", "contest_name": "September Cook-off", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook14\", \"hard\"]"}}, {"model": "core.problem", "pk": 440, "fields": {"code": "HOTEL", "name": "Hotel Bytelandia", "author": "david_adm", "contest_code": "COOK14", "contest_name": "September Cook-off", "contest_successful_submissions": 372, "contest_accuracy": 47.60736196319, "tags": "[\"cook14\", \"easy\"]"}}, {"model": "core.problem", "pk": 441, "fields": {"code": "NDLVOTE", "name": "Vote for the Noodle Soup", "author": "anil_adm", "contest_code": "COOK13", "contest_name": "August Cook-off 2011", "contest_successful_submissions": 149, "contest_accuracy": 23.547400611621, "tags": "[\"cook13\", \"easy\"]"}}, {"model": "core.problem", "pk": 442, "fields": {"code": "DRAGNXOR", "name": "Open the Dragon Scroll", "author": "anil_adm", "contest_code": "COOK13", "contest_name": "August Cook-off 2011", "contest_successful_submissions": 373, "contest_accuracy": 52.503382949932, "tags": "[\"cook13\", \"easy\"]"}}, {"model": "core.problem", "pk": 443, "fields": {"code": "ROTSTRNG", "name": "Rotate the String", "author": "anil_adm", "contest_code": "COOK13", "contest_name": "August Cook-off 2011", "contest_successful_submissions": 59, "contest_accuracy": 10.507880910683, "tags": "[\"cook13\", \"medium\", \"rotstrang\"]"}}, {"model": "core.problem", "pk": 444, "fields": {"code": "KCHIPS", "name": "Angry Chef - Crispy Chips", "author": "anil_adm", "contest_code": "COOK13", "contest_name": "August Cook-off 2011", "contest_successful_submissions": 14, "contest_accuracy": 17.283950617284, "tags": "[\"cook13\", \"medium\"]"}}, {"model": "core.problem", "pk": 445, "fields": {"code": "TKCHOCS", "name": "Collect the Chocolate Chips", "author": "anil_adm", "contest_code": "COOK13", "contest_name": "August Cook-off 2011", "contest_successful_submissions": 38, "contest_accuracy": 32.520325203252, "tags": "[\"cook13\", \"medium\"]"}}, {"model": "core.problem", "pk": 446, "fields": {"code": "CHEF_GAM", "name": "Chefs Game", "author": "shilp_adm", "contest_code": "COOK12", "contest_name": "July Cook-off 2011", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook12\", \"hard\"]"}}, {"model": "core.problem", "pk": 447, "fields": {"code": "MISINTER", "name": "Misinterpretation", "author": "shilp_adm", "contest_code": "COOK12", "contest_name": "July Cook-off 2011", "contest_successful_submissions": 154, "contest_accuracy": 61.654135338346, "tags": "[\"cook12\", \"easy\"]"}}, {"model": "core.problem", "pk": 448, "fields": {"code": "MEANMEDI", "name": "Mean Mean Medians", "author": "shilp_adm", "contest_code": "COOK12", "contest_name": "July Cook-off 2011", "contest_successful_submissions": 3, "contest_accuracy": 2.027027027027, "tags": "[\"cook12\", \"medium\"]"}}, {"model": "core.problem", "pk": 449, "fields": {"code": "GARDENSQ", "name": "Garden Squares", "author": "shilp_adm", "contest_code": "COOK12", "contest_name": "July Cook-off 2011", "contest_successful_submissions": 273, "contest_accuracy": 38.700947225981, "tags": "[\"cook12\", \"easy\"]"}}, {"model": "core.problem", "pk": 450, "fields": {"code": "CHIEFETT", "name": "Pleasing Chief", "author": "shilp_adm", "contest_code": "COOK12", "contest_name": "July Cook-off 2011", "contest_successful_submissions": 43, "contest_accuracy": 15.547703180212, "tags": "[\"cook12\", \"medium\"]"}}, {"model": "core.problem", "pk": 451, "fields": {"code": "SINSUMQ", "name": "Sines Sum Queries", "author": "anton_adm", "contest_code": "COOK11", "contest_name": "June Cook-off", "contest_successful_submissions": 4, "contest_accuracy": 3.1496062992126, "tags": "[\"cook11\", \"hard\"]"}}, {"model": "core.problem", "pk": 452, "fields": {"code": "ARITHPR", "name": "Longest Arithmetic Progressions", "author": "anton_adm", "contest_code": "COOK11", "contest_name": "June Cook-off", "contest_successful_submissions": 16, "contest_accuracy": 12.403100775194, "tags": "[\"cook11\", \"medium\"]"}}, {"model": "core.problem", "pk": 453, "fields": {"code": "DPOWPERM", "name": "D-Power Permutations", "author": "anton_adm", "contest_code": "COOK11", "contest_name": "June Cook-off", "contest_successful_submissions": 2, "contest_accuracy": 5.4545454545455, "tags": "[\"cook11\", \"hard\"]"}}, {"model": "core.problem", "pk": 454, "fields": {"code": "KNIGHTMV", "name": "Correctness of Knight Move", "author": "anton_adm", "contest_code": "COOK11", "contest_name": "June Cook-off", "contest_successful_submissions": 245, "contest_accuracy": 17.212041884817, "tags": "[\"cook11\", \"easy\"]"}}, {"model": "core.problem", "pk": 455, "fields": {"code": "SUPERPLN", "name": "Super-plane", "author": "anton_adm", "contest_code": "COOK11", "contest_name": "June Cook-off", "contest_successful_submissions": 95, "contest_accuracy": 21.166306695464, "tags": "[\"cook11\", \"easy\"]"}}, {"model": "core.problem", "pk": 456, "fields": {"code": "TIDRICE", "name": "Popular Rice Recipe", "author": "anil_adm", "contest_code": "COOK10", "contest_name": "May Cook-off 2011", "contest_successful_submissions": 348, "contest_accuracy": 59.89932885906, "tags": "[\"cook10\", \"easy\"]"}}, {"model": "core.problem", "pk": 457, "fields": {"code": "BIGPIZA", "name": "Socializing Game around Pizza", "author": "anil_adm", "contest_code": "COOK10", "contest_name": "May Cook-off 2011", "contest_successful_submissions": 65, "contest_accuracy": 10.188087774295, "tags": "[\"cook10\", \"easy\"]"}}, {"model": "core.problem", "pk": 458, "fields": {"code": "PACKBAND", "name": "Packing the Golden Triangles", "author": "anil_adm", "contest_code": "COOK10", "contest_name": "May Cook-off 2011", "contest_successful_submissions": 44, "contest_accuracy": 14.838709677419, "tags": "[\"cook10\", \"easy\"]"}}, {"model": "core.problem", "pk": 459, "fields": {"code": "EQIDLIS", "name": "Distribute idlis Equally", "author": "anil_adm", "contest_code": "COOK10", "contest_name": "May Cook-off 2011", "contest_successful_submissions": 136, "contest_accuracy": 20.882352941176, "tags": "[\"cook10\", \"easy\"]"}}, {"model": "core.problem", "pk": 460, "fields": {"code": "CKSCHOOL", "name": "Preferred Cooking Schools", "author": "anil_adm", "contest_code": "COOK10", "contest_name": "May Cook-off 2011", "contest_successful_submissions": 3, "contest_accuracy": 9.6774193548387, "tags": "[\"cook10\", \"hard\"]"}}, {"model": "core.problem", "pk": 461, "fields": {"code": "MUFFINS2", "name": "Frosting Cupcakes", "author": "david_adm", "contest_code": "COOK09", "contest_name": "April Cook-Off Challenge", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook09\", \"hard\"]"}}, {"model": "core.problem", "pk": 462, "fields": {"code": "DIGITS2", "name": "Product of Digits Again", "author": "david_adm", "contest_code": "COOK09", "contest_name": "April Cook-Off Challenge", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook09\", \"hard\"]"}}, {"model": "core.problem", "pk": 463, "fields": {"code": "COOKOFF2", "name": "The Grand Cook Off", "author": "david_adm", "contest_code": "COOK09", "contest_name": "April Cook-Off Challenge", "contest_successful_submissions": 18, "contest_accuracy": 18.0, "tags": "[\"cook09\", \"medium\"]"}}, {"model": "core.problem", "pk": 464, "fields": {"code": "PRIMES2", "name": "A Prime Conjecture", "author": "david_adm", "contest_code": "COOK09", "contest_name": "April Cook-Off Challenge", "contest_successful_submissions": 139, "contest_accuracy": 26.186291739895, "tags": "[\"cook09\", \"easy\"]"}}, {"model": "core.problem", "pk": 465, "fields": {"code": "MIME2", "name": "Internet Media Types", "author": "david_adm", "contest_code": "COOK09", "contest_name": "April Cook-Off Challenge", "contest_successful_submissions": 212, "contest_accuracy": 33.843797856049, "tags": "[\"cook09\", \"easy\"]"}}, {"model": "core.problem", "pk": 466, "fields": {"code": "EXPCOMM", "name": "Exponentiation Commutativity", "author": "anton_adm", "contest_code": "COOK08", "contest_name": "March Cook-off Challenge", "contest_successful_submissions": 2, "contest_accuracy": 3.5714285714286, "tags": "[\"cook08\", \"hard\"]"}}, {"model": "core.problem", "pk": 467, "fields": {"code": "MONTRANS", "name": "Money Transformation", "author": "anton_adm", "contest_code": "COOK08", "contest_name": "March Cook-off Challenge", "contest_successful_submissions": 209, "contest_accuracy": 26.283618581907, "tags": "[\"cook08\", \"easy\"]"}}, {"model": "core.problem", "pk": 468, "fields": {"code": "PALIPALI", "name": "Palindrome Palindrome", "author": "anton_adm", "contest_code": "COOK08", "contest_name": "March Cook-off Challenge", "contest_successful_submissions": 12, "contest_accuracy": 10.344827586207, "tags": "[\"cook08\", \"medium\"]"}}, {"model": "core.problem", "pk": 469, "fields": {"code": "SNAKY", "name": "Snake Snaky", "author": "anton_adm", "contest_code": "COOK08", "contest_name": "March Cook-off Challenge", "contest_successful_submissions": 103, "contest_accuracy": 19.961977186312, "tags": "[\"cook08\", \"easy\"]"}}, {"model": "core.problem", "pk": 470, "fields": {"code": "GROUPING", "name": "Grouping Chefs", "author": "anton_adm", "contest_code": "COOK08", "contest_name": "March Cook-off Challenge", "contest_successful_submissions": 39, "contest_accuracy": 25.161290322581, "tags": "[\"cook08\", \"medium\"]"}}, {"model": "core.problem", "pk": 471, "fields": {"code": "SEQUENCE", "name": "Integer Sequences", "author": "zac_adm", "contest_code": "COOK07", "contest_name": "February Cook - Off Challenge", "contest_successful_submissions": 29, "contest_accuracy": 22.222222222222, "tags": "[\"cook07\", \"medium\"]"}}, {"model": "core.problem", "pk": 472, "fields": {"code": "ATOMS", "name": "Breaking Into Atoms", "author": "zac_adm", "contest_code": "COOK07", "contest_name": "February Cook - Off Challenge", "contest_successful_submissions": 91, "contest_accuracy": 46.341463414634, "tags": "[\"cook07\", \"easy\"]"}}, {"model": "core.problem", "pk": 473, "fields": {"code": "COMM3", "name": "Three Way Communications", "author": "zac_adm", "contest_code": "COOK07", "contest_name": "February Cook - Off Challenge", "contest_successful_submissions": 265, "contest_accuracy": 58.019801980198, "tags": "[\"cook07\", \"easy\"]"}}, {"model": "core.problem", "pk": 474, "fields": {"code": "ENERGY", "name": "Dance Floor Energy", "author": "zac_adm", "contest_code": "COOK07", "contest_name": "February Cook - Off Challenge", "contest_successful_submissions": 15, "contest_accuracy": 39.53488372093, "tags": "[\"cook07\", \"medium\"]"}}, {"model": "core.problem", "pk": 475, "fields": {"code": "CROWNS", "name": "Icing Crowns", "author": "zac_adm", "contest_code": "COOK07", "contest_name": "February Cook - Off Challenge", "contest_successful_submissions": 5, "contest_accuracy": 18.518518518519, "tags": "[\"cook07\", \"medium\"]"}}, {"model": "core.problem", "pk": 476, "fields": {"code": "DIVNODIV", "name": "Divisors number divisibility", "author": "anton_adm", "contest_code": "COOK06", "contest_name": "The January 2011 Cook-Off", "contest_successful_submissions": 2, "contest_accuracy": 2.7397260273973, "tags": "[\"cook06\", \"hard\"]"}}, {"model": "core.problem", "pk": 477, "fields": {"code": "HOLES", "name": "Holes in the text", "author": "anton_adm", "contest_code": "COOK06", "contest_name": "The January 2011 Cook-Off", "contest_successful_submissions": 460, "contest_accuracy": 57.339449541284, "tags": "[\"cook06\", \"easy\"]"}}, {"model": "core.problem", "pk": 478, "fields": {"code": "CHEFTEAM", "name": "Chef team", "author": "anton_adm", "contest_code": "COOK06", "contest_name": "The January 2011 Cook-Off", "contest_successful_submissions": 106, "contest_accuracy": 5.9750135795763, "tags": "[\"cook06\", \"easy\"]"}}, {"model": "core.problem", "pk": 479, "fields": {"code": "WINDOW2", "name": "Whole submatrix", "author": "anton_adm", "contest_code": "COOK06", "contest_name": "The January 2011 Cook-Off", "contest_successful_submissions": 74, "contest_accuracy": 25.694444444444, "tags": "[\"cook06\", \"easy\"]"}}, {"model": "core.problem", "pk": 480, "fields": {"code": "COLLTIME", "name": "Time of collisions", "author": "anton_adm", "contest_code": "COOK06", "contest_name": "The January 2011 Cook-Off", "contest_successful_submissions": 10, "contest_accuracy": 7.0063694267516, "tags": "[\"cook06\", \"medium\"]"}}, {"model": "core.problem", "pk": 481, "fields": {"code": "PUZZLES", "name": "Newspaper Puzzle", "author": "zac_adm", "contest_code": "COOK05", "contest_name": "The December 2010 Cook-Off", "contest_successful_submissions": 2, "contest_accuracy": 7.4074074074074, "tags": "[\"cook05\", \"medium\"]"}}, {"model": "core.problem", "pk": 482, "fields": {"code": "PREPARE", "name": "Preparing Dishes", "author": "zac_adm", "contest_code": "COOK05", "contest_name": "The December 2010 Cook-Off", "contest_successful_submissions": 34, "contest_accuracy": 12.152777777778, "tags": "[\"cook05\", \"medium\"]"}}, {"model": "core.problem", "pk": 483, "fields": {"code": "COMMUTE", "name": "The Morning Commute", "author": "zac_adm", "contest_code": "COOK05", "contest_name": "The December 2010 Cook-Off", "contest_successful_submissions": 173, "contest_accuracy": 57.926829268293, "tags": "[\"cook05\", \"easy\"]"}}, {"model": "core.problem", "pk": 484, "fields": {"code": "PAIRING", "name": "Pairing Chefs", "author": "zac_adm", "contest_code": "COOK05", "contest_name": "The December 2010 Cook-Off", "contest_successful_submissions": 164, "contest_accuracy": 45.244215938303, "tags": "[\"cook05\", \"easy\"]"}}, {"model": "core.problem", "pk": 485, "fields": {"code": "SEEDS", "name": "Seeding The Pattern", "author": "zac_adm", "contest_code": "COOK05", "contest_name": "The December 2010 Cook-Off", "contest_successful_submissions": 5, "contest_accuracy": 14.285714285714, "tags": "[\"cook05\", \"medium\"]"}}, {"model": "core.problem", "pk": 486, "fields": {"code": "COOKOFF", "name": "Choosing Cook Off Problems", "author": "david_adm", "contest_code": "COOK04", "contest_name": "The November CookOff", "contest_successful_submissions": 13, "contest_accuracy": 14.285714285714, "tags": "[\"cook04\", \"medium\"]"}}, {"model": "core.problem", "pk": 487, "fields": {"code": "KNIGHTS", "name": "N Knights Problem", "author": "david_adm", "contest_code": "COOK04", "contest_name": "The November CookOff", "contest_successful_submissions": 29, "contest_accuracy": 31.521739130435, "tags": "[\"cook04\", \"medium\"]"}}, {"model": "core.problem", "pk": 488, "fields": {"code": "LIFE", "name": "One Dimensional Game of Life", "author": "david_adm", "contest_code": "COOK04", "contest_name": "The November CookOff", "contest_successful_submissions": 48, "contest_accuracy": 50.515463917526, "tags": "[\"cook04\", \"easy\"]"}}, {"model": "core.problem", "pk": 489, "fields": {"code": "SOCIAL", "name": "Dinner Party Socializing", "author": "david_adm", "contest_code": "COOK04", "contest_name": "The November CookOff", "contest_successful_submissions": 7, "contest_accuracy": 12.280701754386, "tags": "[\"cook04\", \"medium\"]"}}, {"model": "core.problem", "pk": 490, "fields": {"code": "RECIPE", "name": "Cutting Recipes", "author": "david_adm", "contest_code": "COOK04", "contest_name": "The November CookOff", "contest_successful_submissions": 222, "contest_accuracy": 53.498871331828, "tags": "[\"cook04\", \"easy\"]"}}, {"model": "core.problem", "pk": 491, "fields": {"code": "DIGITS", "name": "Product of Digits", "author": "david_adm", "contest_code": "COOK03", "contest_name": "The October Cook-Off (ACM ICPC Warm Up IIT-K)", "contest_successful_submissions": 2, "contest_accuracy": 2.0408163265306, "tags": "[\"cook03\", \"hard\"]"}}, {"model": "core.problem", "pk": 492, "fields": {"code": "CANDY", "name": "The Perfect Chocolate Candy", "author": "david_adm", "contest_code": "COOK03", "contest_name": "The October Cook-Off (ACM ICPC Warm Up IIT-K)", "contest_successful_submissions": 1, "contest_accuracy": 2.7777777777778, "tags": "[\"cook03\", \"medium\"]"}}, {"model": "core.problem", "pk": 493, "fields": {"code": "TWOCHEFS", "name": "Two Chefs", "author": "david_adm", "contest_code": "COOK03", "contest_name": "The October Cook-Off (ACM ICPC Warm Up IIT-K)", "contest_successful_submissions": 2, "contest_accuracy": 5.0, "tags": "[\"chefs\", \"cook03\", \"medium\", \"two\"]"}}, {"model": "core.problem", "pk": 494, "fields": {"code": "CANDLE", "name": "Birthday Candles", "author": "david_adm", "contest_code": "COOK03", "contest_name": "The October Cook-Off (ACM ICPC Warm Up IIT-K)", "contest_successful_submissions": 89, "contest_accuracy": 19.243986254296, "tags": "[\"cook03\", \"easy\"]"}}, {"model": "core.problem", "pk": 495, "fields": {"code": "COOLING", "name": "Cooling Pies", "author": "david_adm", "contest_code": "COOK03", "contest_name": "The October Cook-Off (ACM ICPC Warm Up IIT-K)", "contest_successful_submissions": 124, "contest_accuracy": 44.797687861272, "tags": "[\"cook03\", \"easy\"]"}}, {"model": "core.problem", "pk": 496, "fields": {"code": "FUNCTION", "name": "Backup Functions", "author": "zac_adm", "contest_code": "COOK02", "contest_name": "August Cook Off", "contest_successful_submissions": 6, "contest_accuracy": 15.384615384615, "tags": "[\"cook02\", \"hard\"]"}}, {"model": "core.problem", "pk": 497, "fields": {"code": "TOOLS", "name": "Fetching Cooking Tools", "author": "zac_adm", "contest_code": "COOK02", "contest_name": "August Cook Off", "contest_successful_submissions": 36, "contest_accuracy": 37.254901960784, "tags": "[\"cook02\", \"medium\"]"}}, {"model": "core.problem", "pk": 498, "fields": {"code": "ARRANGE", "name": "Arranging the Appetizers", "author": "zac_adm", "contest_code": "COOK02", "contest_name": "August Cook Off", "contest_successful_submissions": 140, "contest_accuracy": 37.948717948718, "tags": "[\"cook02\", \"easy\"]"}}, {"model": "core.problem", "pk": 499, "fields": {"code": "MUFFINS", "name": "Baking Cupcakes", "author": "zac_adm", "contest_code": "COOK02", "contest_name": "August Cook Off", "contest_successful_submissions": 6, "contest_accuracy": 3.8961038961039, "tags": "[\"cook02\", \"hard\"]"}}, {"model": "core.problem", "pk": 500, "fields": {"code": "CLEANUP", "name": "Cleaning Up", "author": "zac_adm", "contest_code": "COOK02", "contest_name": "August Cook Off", "contest_successful_submissions": 172, "contest_accuracy": 54.848484848485, "tags": "[\"cook02\", \"easy\"]"}}, {"model": "core.problem", "pk": 501, "fields": {"code": "RIPPLE", "name": "Ripple-Carry Adder", "author": "zac_adm", "contest_code": "COOK01", "contest_name": "July Cook Off ", "contest_successful_submissions": 18, "contest_accuracy": 8.0508474576271, "tags": "[\"cook01\", \"medium\"]"}}, {"model": "core.problem", "pk": 502, "fields": {"code": "BUILDING", "name": "Head office building", "author": "anhdq_adm", "contest_code": "COOK01", "contest_name": "July Cook Off ", "contest_successful_submissions": 10, "contest_accuracy": 5.5865921787709, "tags": "[\"cook01\", \"medium\"]"}}, {"model": "core.problem", "pk": 503, "fields": {"code": "BWKNIGHT", "name": "The Black and White Knights", "author": "syco_adm", "contest_code": "COOK01", "contest_name": "July Cook Off ", "contest_successful_submissions": 40, "contest_accuracy": 9.1684434968017, "tags": "[\"cook01\", \"easy\"]"}}, {"model": "core.problem", "pk": 504, "fields": {"code": "OETW", "name": "OneTwo", "author": "dolabmoon", "contest_code": "COOK98B", "contest_name": "September Mega Cook-Off 2018 Division 2", "contest_successful_submissions": 164, "contest_accuracy": 6.6740412979351, "tags": "[\"cook98\", \"easy\", \"observations\", \"prefix-sum\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 505, "fields": {"code": "UPDOTR", "name": "Learning Dishes", "author": "dolabmoon", "contest_code": "COOK98B", "contest_name": "September Mega Cook-Off 2018 Division 2", "contest_successful_submissions": 5, "contest_accuracy": 2.0408163265306, "tags": "[\"binary-lifting\", \"cook98\", \"easy-medium\", \"taran_1407\", \"tree-dp\"]"}}, {"model": "core.problem", "pk": 506, "fields": {"code": "DOTIT", "name": "Dot It", "author": "dolabmoon", "contest_code": "COOK98B", "contest_name": "September Mega Cook-Off 2018 Division 2", "contest_successful_submissions": 0, "contest_accuracy": 0.0, "tags": "[\"cook98\", \"fft\", \"medium-hard\", \"sqrt-decomp\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 507, "fields": {"code": "MAKPERM", "name": "Make a Permutation", "author": "kingofnumbers", "contest_code": "COOK98B", "contest_name": "September Mega Cook-Off 2018 Division 2", "contest_successful_submissions": 2323, "contest_accuracy": 41.392824841724, "tags": "[\"cook98\", \"observations\", \"permutation\", \"simple\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 508, "fields": {"code": "ATM2", "name": "ATM Machine", "author": "kingofnumbers", "contest_code": "COOK98B", "contest_name": "September Mega Cook-Off 2018 Division 2", "contest_successful_submissions": 3311, "contest_accuracy": 68.620394173093, "tags": "[\"ad-hoc\", \"cakewalk\", \"cook98\", \"simulation\", \"taran_1407\"]"}}, {"model": "core.problem", "pk": 509, "fields": {"code": "GHVSSI", "name": "Ghayeeth vs Siroj", "author": "deadwing97", "contest_code": "COOK98B", "contest_name": "September Mega Cook-Off 2018 Division 2", "contest_successful_submissions": 1, "contest_accuracy": 0.19880715705765, "tags": "[\"cook98\", \"easy-medium\", \"game-theory\", \"number-theory\", \"taran_1407\"]"}}, {"model": "core.codechefcookoff", "pk": 9, "fields": {"code": "COOK97B", "name": "August Cook-Off 2018 Division 2", "problems": [20, 15, 17, 16, 18, 19]}}, {"model": "core.codechefcookoff", "pk": 10, "fields": {"code": "COOK97A", "name": "August Cook-Off 2018 Division 1", "problems": [20, 15, 17, 16, 18, 19]}}, {"model": "core.codechefcookoff", "pk": 11, "fields": {"code": "COOK96B", "name": "July Cook-Off 2018 Division 2", "problems": [23, 22, 26, 24, 21, 25]}}, {"model": "core.codechefcookoff", "pk": 12, "fields": {"code": "COOK96A", "name": "July Cook-Off 2018 Division 1", "problems": [23, 22, 26, 24, 21, 25]}}, {"model": "core.codechefcookoff", "pk": 13, "fields": {"code": "COOK95B", "name": "June Cook-Off 2018 Division 2", "problems": [31, 32, 29, 27, 30, 28]}}, {"model": "core.codechefcookoff", "pk": 14, "fields": {"code": "COOK95A", "name": "June Cook-Off 2018 Division 1", "problems": [31, 32, 29, 27, 30, 28]}}, {"model": "core.codechefcookoff", "pk": 15, "fields": {"code": "COOK94B", "name": "May Cook-off 2018 Division 2", "problems": [37, 34, 36, 33, 35, 38]}}, {"model": "core.codechefcookoff", "pk": 16, "fields": {"code": "COOK94A", "name": "May Cook-off 2018 Division 1", "problems": [37, 34, 36, 33, 35, 38]}}, {"model": "core.codechefcookoff", "pk": 17, "fields": {"code": "COOK93B", "name": "April Cook-off 2018 Division 2", "problems": [41, 42, 43, 40, 39, 44]}}, {"model": "core.codechefcookoff", "pk": 19, "fields": {"code": "COOK93A", "name": "April Cook-off 2018 Division 1", "problems": [41, 42, 43, 40, 39, 44]}}, {"model": "core.codechefcookoff", "pk": 20, "fields": {"code": "COOK92B", "name": "March Cook-off 2018 Division 2", "problems": [46, 49, 45, 48, 47, 50]}}, {"model": "core.codechefcookoff", "pk": 21, "fields": {"code": "COOK92A", "name": "March Cook-off 2018 Division 1", "problems": [46, 49, 45, 48, 47, 50]}}, {"model": "core.codechefcookoff", "pk": 22, "fields": {"code": "COOK91", "name": "February Cook-Off 2018", "problems": [51, 52, 54, 53, 55]}}, {"model": "core.codechefcookoff", "pk": 23, "fields": {"code": "COOK90", "name": "January Cook-Off 2018", "problems": [60, 58, 57, 56, 59]}}, {"model": "core.codechefcookoff", "pk": 24, "fields": {"code": "COOK89", "name": "December Cook-Off 2017", "problems": [65, 64, 63, 61, 62]}}, {"model": "core.codechefcookoff", "pk": 25, "fields": {"code": "COOK88", "name": "November Cook-Off 2017", "problems": [70, 68, 67, 66, 69]}}, {"model": "core.codechefcookoff", "pk": 26, "fields": {"code": "COOK87", "name": "October Cook-Off 2017", "problems": [72, 73, 71, 74, 75]}}, {"model": "core.codechefcookoff", "pk": 27, "fields": {"code": "COOK86", "name": "September Cook-Off 2017", "problems": [79, 78, 77, 76, 80]}}, {"model": "core.codechefcookoff", "pk": 28, "fields": {"code": "COOK85", "name": "August Cook-Off 2017", "problems": [81, 84, 83, 82, 85]}}, {"model": "core.codechefcookoff", "pk": 29, "fields": {"code": "COOK84", "name": "July Cook-Off 2017", "problems": [87, 86, 89, 90, 88]}}, {"model": "core.codechefcookoff", "pk": 30, "fields": {"code": "COOK83", "name": "June Cook-Off 2017", "problems": [95, 93, 91, 92, 94]}}, {"model": "core.codechefcookoff", "pk": 31, "fields": {"code": "COOK82", "name": "May Cook-Off 2017", "problems": [96, 97, 99, 98, 100]}}, {"model": "core.codechefcookoff", "pk": 32, "fields": {"code": "COOK81", "name": "April Cook-Off 2017", "problems": [104, 105, 103, 101, 102]}}, {"model": "core.codechefcookoff", "pk": 33, "fields": {"code": "COOK80", "name": "March Cook-Off 2017", "problems": [106, 110, 108, 107, 109]}}, {"model": "core.codechefcookoff", "pk": 34, "fields": {"code": "COOK79", "name": "February Cook-Off 2017", "problems": [111, 114, 115, 112, 113]}}, {"model": "core.codechefcookoff", "pk": 35, "fields": {"code": "COOK78", "name": "January Cook-Off 2017", "problems": [119, 118, 116, 117, 120]}}, {"model": "core.codechefcookoff", "pk": 36, "fields": {"code": "COOK77", "name": "December Cook-Off 2016", "problems": [121, 122, 125, 123, 124]}}, {"model": "core.codechefcookoff", "pk": 37, "fields": {"code": "COOK76", "name": "November Cook-Off 2016", "problems": [128, 130, 127, 129, 126]}}, {"model": "core.codechefcookoff", "pk": 38, "fields": {"code": "COOK75", "name": "October Cook-Off 2016", "problems": [132, 134, 131, 133, 135]}}, {"model": "core.codechefcookoff", "pk": 39, "fields": {"code": "COOK74", "name": "September Cook-Off 2016", "problems": [136, 137, 138, 140, 139]}}, {"model": "core.codechefcookoff", "pk": 40, "fields": {"code": "COOK73", "name": "August Cook-Off 2016", "problems": [142, 143, 144, 145, 141]}}, {"model": "core.codechefcookoff", "pk": 41, "fields": {"code": "COOK72", "name": "July Cook-Off 2016", "problems": [146, 147, 148, 149, 150]}}, {"model": "core.codechefcookoff", "pk": 42, "fields": {"code": "COOK71", "name": "June Cook-Off 2016", "problems": [151, 152, 154, 155, 153]}}, {"model": "core.codechefcookoff", "pk": 43, "fields": {"code": "COOK70", "name": "May Cook-Off 2016", "problems": [156, 158, 160, 159, 157]}}, {"model": "core.codechefcookoff", "pk": 44, "fields": {"code": "COOK69", "name": "April Cook-Off 2016", "problems": [161, 162, 163, 164, 165]}}, {"model": "core.codechefcookoff", "pk": 45, "fields": {"code": "COOK68", "name": "March Cook-Off 2016", "problems": [169, 167, 168, 170, 166]}}, {"model": "core.codechefcookoff", "pk": 46, "fields": {"code": "COOK67", "name": "February Cook-Off 2016", "problems": [175, 174, 173, 171, 172]}}, {"model": "core.codechefcookoff", "pk": 47, "fields": {"code": "COOK66", "name": "January Cook-Off 2016", "problems": [180, 176, 179, 178, 177]}}, {"model": "core.codechefcookoff", "pk": 48, "fields": {"code": "COOK65", "name": "December Cook-Off 2015", "problems": [181, 182, 183, 185, 184]}}, {"model": "core.codechefcookoff", "pk": 49, "fields": {"code": "COOK64", "name": "November Cook-Off 2015", "problems": [187, 186, 190, 188, 189]}}, {"model": "core.codechefcookoff", "pk": 50, "fields": {"code": "COOK63", "name": "October Cook-Off 2015", "problems": [195, 194, 191, 192, 193]}}, {"model": "core.codechefcookoff", "pk": 51, "fields": {"code": "COOK62", "name": "September Mega Cook-Off 2015", "problems": [198, 200, 199, 196, 197]}}, {"model": "core.codechefcookoff", "pk": 52, "fields": {"code": "COOK61", "name": "August Cook-Off 2015", "problems": [205, 202, 203, 204, 201]}}, {"model": "core.codechefcookoff", "pk": 53, "fields": {"code": "COOK60", "name": "July Cook-Off 2015", "problems": [206, 207, 208, 209, 210]}}, {"model": "core.codechefcookoff", "pk": 54, "fields": {"code": "COOK59", "name": "June Cook-Off 2015", "problems": [215, 211, 213, 212, 214]}}, {"model": "core.codechefcookoff", "pk": 55, "fields": {"code": "COOK58", "name": "May Cook-Off 2015", "problems": [217, 218, 216, 219, 220]}}, {"model": "core.codechefcookoff", "pk": 56, "fields": {"code": "COOK57", "name": "April Cook-Off 2015", "problems": [225, 224, 221, 223, 222]}}, {"model": "core.codechefcookoff", "pk": 57, "fields": {"code": "COOK56", "name": "March Cook-Off 2015", "problems": [227, 229, 228, 226, 230]}}, {"model": "core.codechefcookoff", "pk": 58, "fields": {"code": "COOK55", "name": "February Cook-Off 2015", "problems": [234, 235, 232, 231, 233]}}, {"model": "core.codechefcookoff", "pk": 59, "fields": {"code": "COOK54", "name": "January Cook-Off 2015", "problems": [236, 237, 239, 240, 238]}}, {"model": "core.codechefcookoff", "pk": 60, "fields": {"code": "COOK53", "name": "December Cook-Off 2014", "problems": [245, 243, 244, 241, 242]}}, {"model": "core.codechefcookoff", "pk": 61, "fields": {"code": "COOK52", "name": "November Cook-Off 2014", "problems": [249, 250, 247, 248, 246]}}, {"model": "core.codechefcookoff", "pk": 62, "fields": {"code": "COOK51", "name": "October Cook-Off 2014", "problems": [253, 252, 255, 251, 254]}}, {"model": "core.codechefcookoff", "pk": 63, "fields": {"code": "COOK50", "name": "September Cook-Off 2014, ACM-ICPC Warm up", "problems": [257, 256, 258, 259, 260]}}, {"model": "core.codechefcookoff", "pk": 64, "fields": {"code": "COOK49", "name": "August Cook-Off 2014", "problems": [262, 261, 263, 265, 264]}}, {"model": "core.codechefcookoff", "pk": 65, "fields": {"code": "COOK48", "name": "July Cook-Off 2014", "problems": [266, 268, 270, 267, 269]}}, {"model": "core.codechefcookoff", "pk": 66, "fields": {"code": "COOK47", "name": "June Cook-Off 2014", "problems": [272, 274, 273, 271, 275]}}, {"model": "core.codechefcookoff", "pk": 67, "fields": {"code": "COOK46", "name": "May Cook-Off 2014", "problems": [279, 278, 277, 276, 280]}}, {"model": "core.codechefcookoff", "pk": 68, "fields": {"code": "COOK45", "name": "April Cook-Off 2014", "problems": [281, 283, 284, 285, 282]}}, {"model": "core.codechefcookoff", "pk": 69, "fields": {"code": "COOK44", "name": "March Cook-Off 2014", "problems": [290, 287, 286, 289, 288]}}, {"model": "core.codechefcookoff", "pk": 70, "fields": {"code": "COOK43", "name": "February Cook-Off 2014", "problems": [291, 292, 295, 294, 293]}}, {"model": "core.codechefcookoff", "pk": 71, "fields": {"code": "COOK42", "name": "January Cook-off 2014", "problems": [296, 299, 300, 298, 297]}}, {"model": "core.codechefcookoff", "pk": 72, "fields": {"code": "COOK41", "name": "December Cook-off 2013", "problems": [302, 301, 304, 303, 305]}}, {"model": "core.codechefcookoff", "pk": 73, "fields": {"code": "COOK40", "name": "November Cook-off 2013", "problems": [306, 310, 308, 307, 309]}}, {"model": "core.codechefcookoff", "pk": 74, "fields": {"code": "COOK39", "name": "October Cook-Off 2013", "problems": [313, 312, 314, 311, 315]}}, {"model": "core.codechefcookoff", "pk": 75, "fields": {"code": "COOK38", "name": "September Cook-Off 2013", "problems": [319, 316, 317, 320, 318]}}, {"model": "core.codechefcookoff", "pk": 76, "fields": {"code": "COOK37", "name": "August Cook-Off 2013", "problems": [323, 324, 325, 321, 322]}}, {"model": "core.codechefcookoff", "pk": 77, "fields": {"code": "COOK36", "name": "July Cook-off 2013", "problems": [326, 328, 327, 330, 329]}}, {"model": "core.codechefcookoff", "pk": 78, "fields": {"code": "COOK35", "name": "June Cook-Off 2013", "problems": [331, 332, 333, 335, 334]}}, {"model": "core.codechefcookoff", "pk": 79, "fields": {"code": "COOK34", "name": "May Cook-off 2013", "problems": [338, 339, 340, 337, 336]}}, {"model": "core.codechefcookoff", "pk": 80, "fields": {"code": "COOK33", "name": "April Cook-Off 2013", "problems": [342, 345, 343, 341, 344]}}, {"model": "core.codechefcookoff", "pk": 81, "fields": {"code": "COOK32", "name": "March Cook-off 2013", "problems": [346, 347, 349, 348, 350]}}, {"model": "core.codechefcookoff", "pk": 82, "fields": {"code": "COOK31", "name": "February Cook-Off 2013", "problems": [352, 351, 355, 353, 354]}}, {"model": "core.codechefcookoff", "pk": 83, "fields": {"code": "COOK30", "name": "January Cook-Off 2013", "problems": [356, 357, 358, 359, 360]}}, {"model": "core.codechefcookoff", "pk": 84, "fields": {"code": "COOK29", "name": "December Cook-Off 2012", "problems": [364, 365, 363, 362, 361]}}, {"model": "core.codechefcookoff", "pk": 85, "fields": {"code": "COOK28", "name": "November Cook-Off 2012", "problems": [369, 370, 366, 367, 368]}}, {"model": "core.codechefcookoff", "pk": 86, "fields": {"code": "COOK27", "name": "October Cook-Off 2012", "problems": [371, 374, 372, 375, 373]}}, {"model": "core.codechefcookoff", "pk": 87, "fields": {"code": "COOK26", "name": "September Cook-Off 2012", "problems": [379, 378, 377, 380, 376]}}, {"model": "core.codechefcookoff", "pk": 88, "fields": {"code": "COOK25", "name": "August Cook-Off 2012", "problems": [384, 383, 385, 382, 381]}}, {"model": "core.codechefcookoff", "pk": 89, "fields": {"code": "COOK24", "name": "July Cook-Off 2012", "problems": [386, 390, 388, 389, 387]}}, {"model": "core.codechefcookoff", "pk": 90, "fields": {"code": "COOK23", "name": "June Cook-Off 2012", "problems": [391, 392, 393, 395, 394]}}, {"model": "core.codechefcookoff", "pk": 91, "fields": {"code": "COOK22", "name": "May Cook-Off 2012", "problems": [399, 397, 398, 396, 400]}}, {"model": "core.codechefcookoff", "pk": 92, "fields": {"code": "COOK21", "name": "April Cook-Off 2012", "problems": [402, 404, 403, 401, 405]}}, {"model": "core.codechefcookoff", "pk": 93, "fields": {"code": "COOK20", "name": "March Cook-Off 2012", "problems": [407, 406, 410, 408, 409]}}, {"model": "core.codechefcookoff", "pk": 94, "fields": {"code": "COOK19", "name": "February 2012 Cook-off", "problems": [414, 415, 413, 412, 411]}}, {"model": "core.codechefcookoff", "pk": 95, "fields": {"code": "COOK18", "name": "January Cook-Off", "problems": [416, 417, 420, 418, 419]}}, {"model": "core.codechefcookoff", "pk": 96, "fields": {"code": "COOK17", "name": "December Cook-Off", "problems": [423, 421, 422, 424, 425]}}, {"model": "core.codechefcookoff", "pk": 97, "fields": {"code": "COOK16", "name": "November Cook-Off", "problems": [428, 427, 426, 429, 430]}}, {"model": "core.codechefcookoff", "pk": 98, "fields": {"code": "COOK15", "name": "October Cook-off", "problems": [435, 431, 434, 432, 433]}}, {"model": "core.codechefcookoff", "pk": 99, "fields": {"code": "COOK14", "name": "September Cook-off", "problems": [440, 437, 436, 438, 439]}}, {"model": "core.codechefcookoff", "pk": 100, "fields": {"code": "COOK13", "name": "August Cook-off 2011", "problems": [442, 441, 443, 445, 444]}}, {"model": "core.codechefcookoff", "pk": 101, "fields": {"code": "COOK12", "name": "July Cook-off 2011", "problems": [449, 447, 450, 448, 446]}}, {"model": "core.codechefcookoff", "pk": 102, "fields": {"code": "COOK11", "name": "June Cook-off", "problems": [454, 455, 452, 451, 453]}}, {"model": "core.codechefcookoff", "pk": 103, "fields": {"code": "COOK10", "name": "May Cook-off 2011", "problems": [456, 459, 457, 458, 460]}}, {"model": "core.codechefcookoff", "pk": 104, "fields": {"code": "COOK09", "name": "April Cook-Off Challenge", "problems": [465, 464, 463, 461, 462]}}, {"model": "core.codechefcookoff", "pk": 105, "fields": {"code": "COOK08", "name": "March Cook-off Challenge", "problems": [467, 469, 470, 468, 466]}}, {"model": "core.codechefcookoff", "pk": 106, "fields": {"code": "COOK07", "name": "February Cook - Off Challenge", "problems": [473, 472, 471, 474, 475]}}, {"model": "core.codechefcookoff", "pk": 107, "fields": {"code": "COOK06", "name": "The January 2011 Cook-Off", "problems": [477, 478, 479, 480, 476]}}, {"model": "core.codechefcookoff", "pk": 108, "fields": {"code": "COOK05", "name": "The December 2010 Cook-Off", "problems": [483, 484, 482, 485, 481]}}, {"model": "core.codechefcookoff", "pk": 109, "fields": {"code": "COOK04", "name": "The November CookOff", "problems": [490, 488, 487, 486, 489]}}, {"model": "core.codechefcookoff", "pk": 110, "fields": {"code": "COOK03", "name": "The October Cook-Off (ACM ICPC Warm Up IIT-K)", "problems": [495, 494, 491, 493, 492]}}, {"model": "core.codechefcookoff", "pk": 111, "fields": {"code": "COOK02", "name": "August Cook Off", "problems": [500, 498, 497, 496, 499]}}, {"model": "core.codechefcookoff", "pk": 112, "fields": {"code": "COOK01", "name": "July Cook Off ", "problems": [503, 501, 502]}}, {"model": "core.codechefcookoff", "pk": 113, "fields": {"code": "COOK98B", "name": "September Mega Cook-Off 2018 Division 2", "problems": [508, 507, 504, 505, 509, 506]}}, {"model": "core.codechefcookoff", "pk": 114, "fields": {"code": "COOK98A", "name": "September Mega Cook-Off 2018 Division 1", "problems": [508, 507, 504, 505, 509, 506]}}]