알고리즘 문제 리스트

카카오 오픈채팅 알고리즘 공부방

12.16

1. Leetcode : 961. N-Repeated Element in Size 2N Array
2. Leetcode : 1557. Minimum Number of Vertices to Reach All Nodes
3. Leetcode : 761. Special Binary String

12.9

1. Leetcode : 169. Majority Element
2. Leetcode : 15. 3Sum
3. Leetcode : 761. Special Binary String

12.2

1. Leetcode : 965. Univalued Binary Tree
2. Leetcode : 638. Shopping Offers
3. Leetcode : 2209. Minimum White Tiles After Covering With Carpets

11.25

1. Leetcode : 617. Merge Two Binary Trees
2. Leetcode : 910. Smallest Range II
3. Leetcode : 857. Minimum Cost to Hire K Workers

11.20

1. Leetcode : 1893. Check if All the Integers in a Range Are Covered
2. Leetcode : 659. Split Array into Consecutive Subsequences
3. Leetcode : 805. Split Array With Same Average

11.11

1. Leetcode : 2138. Divide a String Into Groups of Size k
2. Leetcode : 475. Heaters
3. Leetcode : 1568. Minimum Number of Days to Disconnect Island

11.4

1. Leetcode : 872. Leaf-Similar Trees
2. Leetcode : 1052. Grumpy Bookstore Owner
3. Leetcode : 483. Smallest Good Base

10.28

1. Leetcode : 374. Guess Number Higher or Lower
2. Leetcode : 1785. Minimum Elements to Add to Form a Given Sum
3. Leetcode : 1463. Cherry Pickup II

10.21

1. Leetcode : 504. Base 7
2. Leetcode : 1785. Minimum Elements to Add to Form a Given Sum
3. Leetcode : 2030. Smallest K-Length Subsequence With Occurrences of a Letter

10.14

1. Leetcode : 680. Valid Palindrome II
2. Leetcode : 1140. Stone Game II
3. Leetcode : 127. Word Ladder

10.8

1. Leetcode : 463. Island Perimeter
2. Leetcode : 2279. Maximum Bags With Full Capacity of Rocks
3. Leetcode : 924. Minimize Malware Spread

9.30

1. Leetcode : 1848. Minimum Distance to the Target Element
2. Leetcode : 79. Word Search
3. Leetcode : 924. Minimize Malware Spread

9.23

1. Leetcode : 1496. Path Crossing
2. Leetcode : 2279. Maximum Bags With Full Capacity of Rocks
3. Leetcode : 778. Swim in Rising Water

9.16

1. Leetcode : 944. Delete Columns to Make Sorted
2. Leetcode : 2233. Maximum Product After K Increments
3. Leetcode : 960. Delete Columns to Make Sorted III

9.9

1. Leetcode : 1351. Count Negative Numbers in a Sorted Matrix
2. Leetcode : 143. Reorder List
3. Leetcode : 2092. Find All People With Secret

9.2

1. Leetcode : 1470. Shuffle the Array
2. Leetcode : 817. Linked List Components
3. Leetcode : 2163. Minimum Difference in Sums After Removal of Elements

8.25

1. Leetcode : 1629. Slowest Key
2. Leetcode : 817. Linked List Components
3. Leetcode : 995. Minimum Number of K Consecutive Bit Flips

8.19

1. Leetcode : 1556. Thousand Separator
2. Leetcode : 2285. Maximum Total Importance of Roads
3. Leetcode : 1610. Maximum Number of Visible Points

8.12

1. Leetcode : 492. Construct the Rectangle
2. Leetcode : 61. Rotate List
3. Leetcode : 1223. Dice Roll Simulation

8.5

1. Leetcode : 101. Symmetric Tree
2. Leetcode : 1604. Alert Using Same Key-Card Three or More Times in a One Hour Period
3. Leetcode : 1434. Number of Ways to Wear Different Hats to Each Other

7.22

1. Leetcode : 922. Sort Array By Parity II
2. Leetcode : 1604. Alert Using Same Key-Card Three or More Times in a One Hour Period
3. Leetcode : 1392. Longest Happy Prefix

7.16

1. Leetcode : 584. Find Customer Referee
2. Leetcode : 1319. Number of Operations to Make Network Connected
3. Leetcode : 321. Create Maximum Number

7.8

1. Leetcode : 584. Find Customer Referee
2. Leetcode : 1997. First Day Where You Have Been in All the Rooms
3. Leetcode : 460. LFU Cache

7.1

1. Leetcode : 1342. Number of Steps to Reduce a Number to Zero
2. Leetcode : 1487. Making File Names Unique
3. Leetcode : 1345. Jump Game IV

6.24

1. Leetcode : 543. Diameter of Binary Tree
2. Leetcode : 1813. Sentence Similarity III
3. Leetcode : 1377. Frog Position After T Seconds

6.17

1. Leetcode : 459. Repeated Substring Pattern
2. Leetcode : 2017. Grid Game
3. Leetcode : 1330. Reverse Subarray To Maximize Array Value

6.10

1. Leetcode : 258. Add Digits
2. Leetcode : 2017. Grid Game
3. Leetcode : 488. Zuma Game

6.3

1. Leetcode : 1844. Replace All Digits with Characters
2. Leetcode : 622. Design Circular Queue
3. Leetcode : 591. Tag Validator

5.28

1. Leetcode : 1668. Maximum Repeating Substring
2. Leetcode : 1813. Sentence Similarity III
3. Leetcode : 472. Concatenated Words

5.20

1. Leetcode : 1332. Remove Palindromic Subsequences
2. Leetcode : 95. Unique Binary Search Trees II
3. Leetcode : 1425. Constrained Subsequence Sum

5.12

1. Leetcode : 1103. Distribute Candies to People
2. Leetcode : 207. Course Schedule
3. Leetcode : 493. Reverse Pairs

5.6

1. Leetcode : 1332. Remove Palindromic Subsequences
2. Leetcode : 1864. Minimum Number of Swaps to Make the Binary String Alternating
3. Leetcode : 1235. Maximum Profit in Job Scheduling

4.29

1. Leetcode : 414. Third Maximum Number
2. Leetcode : 621. Task Scheduler
3. Leetcode : 1483. Kth Ancestor of a Tree Node

4.22

1. Leetcode : 414. Third Maximum Number
2. Leetcode : 1963. Minimum Number of Swaps to Make the String Balanced
3. Leetcode : 1383. Maximum Performance of a Team

4.15

1. Leetcode : 118. Pascal's Triangle
2. Leetcode : 2125. Number of Laser Beams in a Bank
3. Leetcode : 827. Making A Large Island

4.8

1. Leetcode : 1114. Print in Order
2. Leetcode : 1626. Best Team With No Conflicts
3. Leetcode : 1001. Grid Illumination

4.1

1. Leetcode : 1260. Shift 2D Grid
2. Leetcode : 2130. Maximum Twin Sum of a Linked List
3. Leetcode : 1001. Grid Illumination

3.25

1. Leetcode : 1984. Minimum Difference Between Highest and Lowest of K Scores
2. Leetcode : 1019. Next Greater Node In Linked List
3. Leetcode : 1643. Kth Smallest Instructions

3.18

1. Leetcode : 1667. Fix Names in a Table
2. Leetcode : 2201. Count Artifacts That Can Be Extracted
3. Leetcode : 273. Integer to English Words

3.11

1. Leetcode : 1984. Minimum Difference Between Highest and Lowest of K Scores
2. Leetcode : 304. Range Sum Query 2D - Immutable
3. Leetcode : 1601. Maximum Number of Achievable Transfer Requests

3.4

1. Leetcode : 1886. Determine Whether Matrix Can Be Obtained By Rotation
2. Leetcode : 436. Find Right Interval
3. Leetcode : 818. Race Car

2.26

1. Leetcode : 1886. Determine Whether Matrix Can Be Obtained By Rotation
2. Leetcode : 978. Longest Turbulent Subarray
3. Leetcode : 1095. Find in Mountain Array

2.19

1. Leetcode : 728. Self Dividing Numbers
2. Leetcode : 1110. Delete Nodes And Return Forest
3. Leetcode : 1889. Minimum Space Wasted From Packaging

2.13

1. Leetcode : 1854. Maximum Population Year
2. Leetcode : 978. Longest Turbulent Subarray
3. Leetcode : 2025. Maximum Number of Ways to Partition an Array

2.5

1. Leetcode : 350. Intersection of Two Arrays II
2. Leetcode : 1861. Rotating the Box
3. Leetcode : 768. Max Chunks To Make Sorted II

1.30

1. Leetcode : 819. Most Common Word
2. Leetcode : 49. Group Anagrams
3. Leetcode : 2076. Process Restricted Friend Requests

1.23

1. Leetcode : Base 7
2. Leetcode : Palindrome Partitioning
3. Leetcode : Number of Flowers in Full Bloom

1.17

1. Leetcode : Divisor Game
2. Leetcode : Maximum Alternating Subsequence Sum
3. Leetcode : The Skyline Problem

1.8

1. Leetcode : Determine Whether Matrix Can Be Obtained By Rotation
2. Leetcode : Snapshot Array
3. Leetcode : Word Ladder

1.2

1. Leetcode : Minimum Operations to Make the Array Increasing
2. Leetcode : Possible Bipartition
3. Leetcode : Frog Position After T Seconds

12.25

1. Leetcode : Min Stack
2. Leetcode : Shifting Letters
3. Leetcode : Parse Lisp Expression

12.17

1. Leetcode : Nim Game
2. Leetcode : Largest Merge Of Two Strings
3. Leetcode : Sequentially Ordinal Rank Tracker

12.11

1. Leetcode : Remove All Adjacent Duplicates In String
2. Leetcode : Logical OR of Two Binary Grids Represented as Quad-Trees
3. Leetcode : Minimum Cost to Cut a Stick

12.3

1. Leetcode : Check if the Sentence Is Pangram
2. Leetcode : UTF-8 Validation
3. Leetcode : Pizza With 3n Slices

11.26

1. Leetcode : Shortest Completing Word
2. Leetcode : Minimum Absolute Sum Difference
3. Leetcode : Poor Pigs

11.19

1. Leetcode : Intersection of Multiple Arrays
2. Leetcode : Reordered Power of 2
3. Leetcode : Number of Visible People in a Queue

11.12

1. Leetcode : Redistribute Characters to Make All Strings Equal
2. Leetcode : Random Flip Matrix
3. Leetcode : Special Binary String

11.5

1. Leetcode : Print in Order
2. Leetcode : Rotated Digits
3. Leetcode : Find Median from Data Stream

#10.29

1. Leetcode : Merge Two Sorted Lists
2. Leetcode : Detect Squares
3. Leetcode : Smallest Range Covering Elements from K Lists

10.22

1. Leetcode : Complement of Base 10 Integer
2. Leetcode : Dota2 Senate
3. Leetcode : Kth Smallest Instructions

10.15

1. Leetcode : Sign of the Product of an Array
2. Leetcode : Largest Divisible Subset
3. Leetcode : Number of Digit One

10.7

1. Leetcode : Day of the Week
2. Leetcode : Number of Ways to Select Buildings
3. Leetcode : Word Search II

10.1

1. Leetcode : Implement strStr()
2. Leetcode : Reverse Linked List II
3. Leetcode : Minimum Operations to Make the Array K-Increasing

9.24

1. Leetcode : Check if All Characters Have Equal Number of Occurrences
2. Leetcode : All Elements in Two Binary Search Trees
3. Leetcode : Allocate Mailboxes

9.14

1. Leetcode : Valid Palindrome II
2. Leetcode : Break a Palindrome
3. Leetcode : LFU Cache

9.3

1. Leetcode : Divide Array Into Equal Pairs
2. Leetcode : Minimized Maximum of Products Distributed to Any Store
3. Leetcode : Minimum Number of Removals to Make Mountain Array

8.20

1. Leetcode : Check Whether Two Strings are Almost Equivalent
2. Leetcode : Redundant Connection
3. Leetcode : Build Array Where You Can Find The Maximum Exactly K Comparisons

8.13

1. Leetcode : Add Binary
2. Leetcode : Queue Reconstruction by Height
3. Leetcode : Random Pick with Blacklist

8.6

1. Leetcode : Destination City
2. Leetcode : Minimum Operations to Make Array Equal
3. Leetcode : Kth Smallest Product of Two Sorted Arrays

7.30

1. Leetcode : Minimum Time to Type Word Using Special Typewriter
2. Leetcode : Stone Game II
3. Leetcode : Shortest Path to Get All Keys

7.23

1. Leetcode : Article Views I
2. Leetcode : Minimum Cost to Set Cooking Time
3. Leetcode : Maximum Profit in Job Scheduling

7.18

1. Leetcode : Range Addition II
2. Leetcode : Get Equal Substrings Within Budget
3. Leetcode : Minimum One Bit Operations to Make Integers Zero

7.9

1. Leetcode : Detect Capital
2. Leetcode : Rabbits in Forest
3. Leetcode : Count Unique Characters of All Substrings of a Given String

7.2

1. Leetcode : Transpose Matrix
2. Leetcode : Shopping Offers
3. Leetcode : Minimize Deviation in Array

6.25

1. Leetcode : Check If a Word Occurs As a Prefix of Any Word in a Sentence
2. Leetcode : Reverse Nodes in Even Length Groups
3. Leetcode : Number Of Ways To Reconstruct A Tree

6.18

1. Leetcode : Roman to Integer
2. Leetcode : Find Minimum in Rotated Sorted Array
3. Leetcode : Maximum Sum of 3 Non-Overlapping Subarrays

6.11

1. Leetcode : Reformat Department Table
2. Leetcode : Minimum Path Sum
3. Leetcode : Concatenated Words

6.5

1. Leetcode : Count Number of Pairs With Absolute Difference K
2. Leetcode : Rotate Array
3. Leetcode : Find the Kth Smallest Sum of a Matrix With Sorted Rows

5.28

1. Leetcode : Minimum Value to Get Positive Step by Step Sum
2. Leetcode : Maximum Length of Repeated Subarray
3. Leetcode : Sum of Floored Pairs

5.21

1. Leetcode : Binary Watch
2. Leetcode : Additive Number
3. Leetcode : Max Value of Equation

5.7

1. Leetcode : Intersection of Two Arrays II
2. Leetcode : Number of Smooth Descent Periods of a Stock
3. Leetcode : Minimum White Tiles After Covering With Carpets

4.30

1. Leetcode : Thousand Separator
2. Leetcode : 4Sum II
3. Leetcode : Tiling a Rectangle with the Fewest Squares

4.23

1. Leetcode : Sum of Root To Leaf Binary Numbers
2. Leetcode : Binary Search Tree to Greater Sum Tree
3. Leetcode : Trips and Users

4.9

1. Leetcode : Keep Multiplying Found Values by Two
2. Leetcode : Find a Peak Element II
3. Leetcode : Minimum Incompatibility

4.2

1. Leetcode : Valid Boomerang
2. Leetcode : Distribute Coins in Binary Tree
3. Leetcode : Create Maximum Number

3.26

1. Leetcode : Valid Palindrome
2. Leetcode : Delete Leaves With a Given Value
3. Leetcode : Number of Valid Move Combinations On Chessboard

3.19

1. Leetcode : Swap Salary
2. Leetcode : Evaluate Reverse Polish Notation
3. Leetcode : Maximum Genetic Difference Query

3.13

1. Leetcode : Prime Arrangements
2. Leetcode : Minimum Limit of Balls in a Bag
3. Leetcode : Perfect Rectangle

2.19

1. Leetcode : N-ary Tree Preorder Traversal
2. Leetcode : Group Anagrams
3. Leetcode : Maximum Number of Events That Can Be Attended II

2.5

1. Leetcode : Kids With the Greatest Number of Candies
2. Leetcode : Find And Replace in String
3. Leetcode : Similar String Groups

1.29

1. Leetcode : Duplicate Emails
2. Leetcode : Cinema Seat Allocation
3. Leetcode : Minimum Cost to Hire K Workers

1.21

1. Leetcode : Number of Different Integers in a String
2. Leetcode : Total Hamming Distance
3. Leetcode : Minimum Difficulty of a Job

1.15

1. Leetcode : Power of Three
2. Leetcode : Balance a Binary Search Tree
3. Leetcode : Maximum Running Time of N Computers

1.2

1. Leetcode : Excel Sheet Column Number
2. Leetcode : Flower Planting With No Adjacent
3. Leetcode : Maximum Gap

12.26

1. Leetcode : Number of Recent Calls
2. Leetcode : Letter Case Permutation
3. Leetcode : Find in Mountain Array

12.19

1. Leetcode : Find Words That Can Be Formed by Characters
2. Leetcode : Course Schedule II
3. Leetcode : Building Boxes

12.11

1. Leetcode : Find Pivot Index
2. Leetcode : Maximum Trailing Zeros in a Cornered Path
3. Leetcode : Best Time to Buy and Sell Stock III

12.4

1. Leetcode : Student Attendance Record I
2. Leetcode : Image Overlap
3. Leetcode : Making A Large Island

11.27

1. Leetcode : Count Good Triplets
2. Leetcode : Can Convert String in K Moves
3. Leetcode : Minimum Insertion Steps to Make a String Palindrome

11.20

• Leetcode : Binary Tree Preorder Traversal
• Leetcode : Solving Questions With Brainpower
• Leetcode : Maximum Equal Frequency

11.14

• Leetcode : Special Positions in a Binary Matrix
• Leetcode : Maximum Level Sum of a Binary Tree
• Leetcode : Find Substring With Given Hash Value

11.6

• Leetcode : Minimum Cost of Buying Candies With Discount
• Leetcode : Minimum Cost Homecoming of a Robot in a Grid
• Leetcode : Minimum Cost to Cut a Stick

10.30

• Leetcode : Root Equals Sum of Children
• Leetcode : Flip String to Monotone Increasing
• Leetcode : Preimage Size of Factorial Zeroes Function

10.23

• Leetcode : Remove All Adjacent Duplicates In String
• Leetcode : Shortest Subarray to be Removed to Make Array Sorted
• Leetcode : Process Restricted Friend Requests

10.16

• Leetcode : Power of Two
• Leetcode : Path Sum III
• Leetcode : Minimum Number of Increments on Subarrays to Form a Target Array

10.10

• Leetcode : Rings and Rods
• Leetcode : All Divisions With the Highest Score of a Binary Array
• Leetcode : Numbers With Repeated Digits

10.2

• Leetcode : Replace All ?'s to Avoid Consecutive Repeating Characters
• Leetcode : Minimum Swaps to Group All 1's Together II
• Leetcode : Vertical Order Traversal of a Binary Tree

9.26

• Leetcode : Reshape the Matrix
• Leetcode : Non-decreasing Array
• Leetcode : Find a Value of a Mysterious Function Closest to Target

9.21

• Leetcode : Ugly Number
• Leetcode : Reveal Cards In Increasing Order
• Leetcode : Maximum Number of Darts Inside of a Circular Dartboard

9.4

• Leetcode : Path Crossing
• Leetcode : Minimize Hamming Distance After Swap Operations
• Leetcode : Reverse Subarray To Maximize Array Value

8.28

• Leetcode : Sum of All Odd Length Subarrays
• Leetcode : Construct K Palindrome Strings
• Leetcode : Number of Ways to Rearrange Sticks With K Sticks Visible

8.23

• Leetcode : Find the Distance Value Between Two Arrays
• Leetcode : Binary Trees With Factors
• Leetcode : Reverse Pairs

8.14

• Leetcode : Shuffle String
• Leetcode : Count Number of Homogenous Substrings
• Leetcode : Online Majority Element In Subarray

8.8

• Leetcode : Hamming Distance
• Leetcode : Open the Lock
• Leetcode : Find Longest Awesome Substring

8.1

• Leetcode : Middle of the Linked List
• Leetcode : Decode XORed Permutation
• Leetcode : Tag Validator

7.26

• Leetcode : Ransom Note
• Leetcode : The Number of Weak Characters in the Game
• Leetcode : Minimum Number of Taps to Open to Water a Garden

7.17

• Leetcode : Special Array With X Elements Greater Than or Equal X
• Leetcode : Minimum Total Space Wasted With K Resizing Operations
• Leetcode : Maximum Frequency Stack

7.11

• Leetcode : Number of Valid Words in a Sentence
• Leetcode : Pancake Sorting
• Leetcode : Parallel Courses III

7.4

• Leetcode : How Many Numbers Are Smaller Than the Current Number
• Leetcode : Magic Squares In Grid
• Leetcode : Maximum Number of Visible Points

6.27

• Leetcode : Reformat The String
• Leetcode : Number of Boomerangs
• Leetcode : Count All Valid Pickup and Delivery Options

6.21

• Leetcode : Valid Palindrome II
• Leetcode : Copy List with Random Pointer
• Leetcode : Make the XOR of All Segments

6.13

• Leetcode : Convert a Number to Hexadecimal
• Leetcode : Check If Array Pairs Are Divisible by k
• Leetcode : Kth Smallest Product of Two Sorted Arrays

6.5

• Leetcode : Move Zeroes
• Leetcode : Maximum Number of Occurrences of a Substring
• Leetcode : Maximum Students Taking Exam

5.30

• Leetcode : Minimum Changes To Make Alternating Binary String
• Leetcode : Closest Divisors
• Leetcode : Minimum Space Wasted From Packaging

5.23

• Leetcode : Positions of Large Groups
• Leetcode : Top K Frequent Elements
• Leetcode : Reaching Points

5.16

• Leetcode : Implement Stack using Queues
• Leetcode : Rotate List
• Leetcode : Reverse Nodes in k-Group

5.10

• Leetcode : Average of Levels in Binary Tree
• Leetcode : Product of Array Except Self
• Leetcode : Wildcard Matching

5.3

• Leetcode : Buddy Strings
• Leetcode : Search a 2D Matrix II
• Leetcode : Arithmetic Slices II - Subsequence

4.27

• Leetcode : Search Insert Position
• Leetcode : Partition List
• Leetcode : K-th Smallest Prime Fraction

4.18

• Leetcode : Monotonic Array
• Leetcode : Perfect Squares
• Leetcode : Swim in Rising Water

4.12

• Leetcode : Duplicate Zeros
• Leetcode : Binary Search Tree Iterator
• Leetcode : Student Attendance Record II

4.6

• Leetcode : Binary Search
• Leetcode : 3Sum With Multiplicity

3.28

• Leetcode : Fizz Buzz
• Leetcode : Integer Break
• Leetcode : Sliding Window Median

3.21

• Leetcode : Same Tree
• Leetcode : Next Permutation
• Leetcode : Serialize and Deserialize Binary Tree

3.14

• Leetcode : Climbing Stairs
• Leetcode : Simplify Path
• Leetcode : Dungeon Game

3.7

• Leetcode : Robot Return to Origin
• Leetcode : Course Schedule
• Leetcode : Basic Calculator

2.27

• Leetcode : Fair Candy Swap
• Leetcode : Minimum Genetic Mutation
• Leetcode : Remove Boxes

2.22

• Leetcode : Longest Continuous Increasing Subsequence
• Leetcode : Word Search
• Leetcode : IPO

2.14

• Leetcode : Is Subsequence
• Leetcode : Swap Nodes in Pairs
• Leetcode : Scramble String

2.7

• Leetcode : Power of Four
• Leetcode : Sort Colors
• Leetcode : Word Ladder

1.31

• Leetcode : Contains Duplicate
• Leetcode : Combination Sum
• Leetcode : Remove Invalid Parentheses

1.23

• Leetcode : Binary Tree Inorder Traversal
• Leetcode : Group Anagrams
• Leetcode : Edit Distance

1.17

• Leetcode : Roman to Integer
• Leetcode : 3Sum Closest
• Leetcode : N-Queens II

1.10

• Leetcode : Word Pattern
• Leetcode : Longest Palindromic Substring
• Leetcode : Longest Valid Parentheses

1.3

• Leetcode : Set Mismatch
• Leetcode : Validate Binary Search Tree
• Leetcode : Candy

12.29

• Leetcode : Maximum Product of Three Numbers
• Leetcode : Find K Pairs with Smallest Sums

12.20

• Leetcode : Pascal's Triangle II
• Leetcode : Container With Most Water
• Leetcode : First Missing Positive

12.9

• Leetcode : Palindrome Linked List
• Leetcode : Binary Tree Zigzag Level Order Traversal
• Leetcode : Fancy Sequence

11.29

• Leetcode : Find Common Characters
• Leetcode : Accounts Merge
• Leetcode : Sliding Window Maximum

11.22

• Leetcode : Max Consecutive Ones
• Leetcode : Repeated DNA Sequences

11.16

• Leetcode : Count Binary Substrings
• Leetcode : Serialize and Deserialize BST

11.10

• Leetcode : Assign Cookies
• Leetcode : House Robber III

11.1

• Leetcode : Next Greater Element I
• Leetcode : Majority Element II
• Leetcode : Best Time to Buy and Sell Stock IV

10.26

• Leetcode : Number of 1 Bits
• Leetcode : Spiral Matrix II

10.18

• Leetcode : Isomorphic Strings
• Leetcode : 4Sum
• Leetcode : N-Queens

10.12

• Leetcode : Happy Number
• Leetcode : Unique Paths II
• Leetcode : Trapping Rain Water

10.4

• Leetcode : Pascal's Triangle
• Leetcode : Unique Binary Search Trees
• Leetcode : Expression Add Operators

9.27

• Leetcode : Same Tree
• Leetcode : Jump Game II
• Leetcode : Serialize and Deserialize Binary Tree

9.14

• Leetcode : Verifying an Alien Dictionary
• Leetcode : Minimum Height Trees
• Leetcode : Find Median from Data Stream

9.7

• Leetcode : Min Cost Climbing Stairs
• Leetcode : Rotate Function
• Leetcode : Best Time to Buy and Sell Stock III

8.30

• Leetcode : Reverse Bits
• Leetcode : Subsets
• Leetcode : Maximum Gap

8.24

• Leetcode : Linked List Cycle
• Leetcode : Interleaving String
• Leetcode : Reverse Nodes in k-Group

8.16

• Leetcode : Design HashMap
• Leetcode : Range Sum Query - Mutable
• Leetcode : Sudoku Solver

8.9

• Leetcode : Arranging Coins
• Leetcode : Find Peak Element
• Leetcode : Data Stream as Disjoint Intervals

8.2

• Leetcode : Longest Palindrome
• Leetcode : Different Ways to Add Parentheses

7.26

• Leetcode : Valid Perfect Square
• Leetcode : Spiral Matrix

7.20

• Leetcode : Ransom Note
• Leetcode : Word Break

7.12

• Leetcode : Reverse String
• Leetcode : Partition List

7.6

• Leetcode : Power of Three
• Leetcode : Unique Paths

6.28

• Leetcode : Min Stack
• Leetcode : Multiply Strings
• Leetcode : Regular Expression Matching

6.22

• Leetcode : Valid Parentheses
• Leetcode : Valid Sudoku

6.15

• Leetcode : Excel Sheet Column Title
• Leetcode : Non-decreasing Array

6.8

• Leetcode : Lowest Common Ancestor of a Binary Search Tree
• Leetcode : LRU Cache

6.1

• Leetcode : Majority Element
• Leetcode : Gas Station

5.25

• Leetcode : How Many Numbers Are Smaller Than the Current Number
• Leetcode : Design Twitter

5.18

• Leetcode : Unique Number of Occurrences
• Leetcode : Task Scheduler

5.11

• Leetcode : Find the Town Judge
• Leetcode : Restore IP Addresses

5.4

• Leetcode : Merge Two Binary Trees
• Leetcode : Rotate Image
• Leetcode : Number of Ways to Reorder Array to Get Same BST

4.27

• Leetcode : Search in a Binary Search Tree
• Leetcode : Open the Lock
• Leetcode : Number of Submatrices That Sum to Target

4.19

• Leetcode : Binary Number with Alternating Bits
• Leetcode : Push Dominoes
• Leetcode : 24 Game

4.12

• Leetcode : Symmetric Tree
• Leetcode : Jump Game
• Leetcode : Word Break II

4.5

• Leetcode : Move Zeroes
• Leetcode : Search a 2D Matrix
• Leetcode : The Skyline Problem

3.29

• Leetcode : Letter Combinations of a Phone Number
• Leetcode : Merge k Sorted Lists

3.22

• Leetcode : Positions of large groups
• Leetcode : kth smallest element in a sorted matrix
• Leetcode : Find k closest elements

3.16

• Leetcode : Number of provinces
• Leetcode : Couples holding hands

3.8

• Leetcode : Minimum size subarray sum
• Leetcode : Permutation in string
• Leetcode : Sliding window median

3.1

• Leetcode : Maximum subarray
• Leetcode : Length of longest fibonacci subsequence
• Leetcode : Wildcard matching

2.21

• Leetcode : Minimum depth of binary tree
• Leetcode : Rotting oranges
• Leetcode : Bus routes

2.7

• Leetcode : Remove all adjacent duplicates in string
• Leetcode : Minimum add to make parentheses valid
• Leetcode : Minimum adjacent swaps for k consecutive ones

1.25

• Leetcode : Min cost climbing stairs
• Leetcode : Greatest sum divisible by three
• Leetcode : Stone game III

1.10

• Leetcode : Remove duplicates from sorted list
• Leetcode : Remove duplicates from sorted list II
• Leetcode : Odd even linked list
• Leetcode : Remove zero sum consecutive nodes from linked list

12.27

• Leetcode : Last stone weight
• Leetcode : Distant barcodes
• Leetcode : Furthest building you can reach
• Leetcode : Find kth smallest pair distance

12.13

• Leetcode : Maximum depth of n ary tree
• Leetcode : Shortest path in binary matrix
• Leetcode : Shortest path in a grid with obstacles elimination

11.29

• Leetcode : Search Insert Position
• Leetcode : Find Minimum in Rotated Sorted Array
• Leetcode : Capacity to Ship Packages Within D-Days
• Leetcode : Maximum Profit in Job Scheduling

11.15

• Leetcode : Flipping an image
• Leetcode : Longest Subarray of 1s after deleting one element
• Leetcode : Max value of equation

11.01

• Leetcode : Maximum Subarray
• Leetcode : Find Two Non-overlapping Subarrays Each With Target Sum
• Leetcode : Maximum Profit In Job Scheduling

10.12

• Leetcode : Plus One Linked List
• Leetcode : Search a 2D Matrix II
• Leetcode : Recover Binary Search Tree
• Leetcode : Online Majority Element In Subarray
• Leetcode : Student Attendance Record II

09.27

• Leetcode : Find All Numbers Disappeared in an Array
• Leetcode : Find All Duplicates in an Array
• Leetcode : Find Missing Positive
• Leetcode : All Paths from Source Lead to Destination
• Leetcode : Binary Tree Cameras

09.05

• Leetcode : Min Stack
• Leetcode : Flatten Nested List Iterator
• Leetcode : Sliding Window Maximum
• Leetcode : Sum of Distances in Tree
• Leetcode : Reachable Nodes In Subdivided Graph

08.29 - 해답

• Leetcode : Cat and Mouse
• Leetcode : Number of Music Playlists

08.23 - 해답

• Leetcode : Merge Two Sorted Lists
• Leetcode : Sort List
• Leetcode : Merge k Sorted Lists
• Leetcode : Exam Room
• Leetcode : Perfect Rectangle

08.16 - 해답

• Leetcode : Next Greater Element I
• Leetcode : Combination Sum II
• Leetcode : Circular Array Loop
• Leetcode : Erect the Fence

08.09

• Leetcode : Merge Sorted Array
• Leetcode : Top K Frequent Words
• Leetcode : Different Ways to Add Parentheses
• Leetcode : Count of Smaller Numbers After Self

08.04 - 해답

• Leetcode : Best Time to Buy and Sell Stock
• Leetcode : Longest Happy String
• Leetcode : Count Number of Teams
• Leetcode : Super Egg Drop

07.26

• Leetcode : Valid Palindrome II
• Leetcode : Minimum Remove to Make Valid Parentheses
• Leetcode : Seriralize and Deserialize BST
• Leetcode : Perfect Rectangle

07.19 - 해답

• Leetcode : Maximum Subarray
• Leetcode : Generate Parentheses
• Leetcode : Count Servers that Communicate
• Leetcode : Basic Calculator

07.12 - 해답

• Leetcode : Number of Good Pairs
• Leetcode : Number of Islands
• Leetcode : Uncrossed Lines
• Leetcode : Number of Subarrays with Bounded Maximum

07.05 - 해답

• Leetcode : Super Ugly Number
• Leetcode : Minimum Number of Arrows to Burst Balloons
• Leetcode : Possible Bipartition

06.29

• Leetcode : House Robber II
• Leetcode : Pancake Sorting
• Leetcode : Elimination Game

06.21

• Leetcode : Final Prices With a Special Discount in a Shop
• Leetcode : Stone Game II
• Leetcode : Minimum Number of Days to Make m Bouquets

06.13

• Leetcode : Word Subsets
• Leetcode : Shortest Path with Alternating Colors
• Leetcode : Time Needed to Inform All Employees

06.06

• 프로그래머스 : 후보키
• Leetcode : Lowest common ancestor of a binary search tree
• Leetcode : Friend circles

05.31

• Leetcode : Range sum query immutalbe
• Leetcode : Maximum length of repeated subarray

05.24

• 프로그래머스 : 보행자 천국
• Leetcode : Cousins in binary tree
• Leetcode : Number of islands

05.18

• 프로그래머스 : 여행경로
• Leetcode : Path sum
• Leetcode : Path sum II

05.10

• 프로그래머스 : 괄호 변환
• Leetcode : Remove outermost parentheses
• Leetcode : Reverse substrings between each pair of parentheses

05.03

• 프로그래머스 : 디스크 컨트롤러
• Leetcode : Kth largest element in an array
• Leetcode : Kth smallest prime fraction

04.25

• 프로그래머스 : 구명보트
• Leetcode : Last stone weight
• Leetcode : Subarray sums divisible by k

04.18

• Leetcode : Lemonade change
• Leetcode : Surrounded regions
• Leetcode : Next greater element II

04.10

• 프로그래머스 : 주식가격
• Leetcode : Backspace string compare
• Leetcode : 132 Pattern

04.04

• 프로그래머스 : 크레인 인형 뽑기 게임
• Leetcode : Container with most water
• Leetcode : Largest rectangle in histogram

03.28

• 프로그래머스 : 무지의 먹방 라이브
• Leetcode : Two sum II
• Leetcode : Split array largest sum

03.20

• 프로그래머스 : 징검다리
• Leetcode : Find smallest letter greater than target
• Leetcode : Count of smaller numbers after self (설명)

03.14

• 프로그래머스 : 예산
• Leetcode : Search insert position
• Leetcode : Search in rotated sorted array

03.06

• 프로그래머스 : 정수삼각형
• Leetcode : Distance between bus stops
• Leetcode : Minimum Number of Refueling Stops

02.28

• 프로그래머스 : 카카오프렌즈 컬러링북
• Leetcode : Flood fill
• Leetcode : Minimize malware spread II

02.21

• 프로그래머스 : 단어퍼즐
• Leetcode : Find words that can be formed by characters
• Leetcode : Longest String Chain

02.14

• 프로그래머스 : 줄서는 방법
• Leetcode : Is subsequence
• Leetcode : Longest common subsequence

02.07

• 프로그래머스 : 도둑질
• Leetcode : House robber
• Leetcode : House robber ii

02.01

• 프로그래머스 : 멀리뛰기
• Leetcode : Climbing stairs
• Leetcode : Min cost climbing stairs

01.18

• 프로그래머스 : 최고의 집합
• Leetcode : Reverse linked list
• Leetcode : Reorder list
• Leetcode : Merge k sorted lists

01.11

• 프로그래머스 : 문자열 압축
• Leetcode : Rotate Array
• Leetcode : Find minimum in rotated sorted array

01.04

• 프로그래머스 : 가장 긴 팰린드롬
• Leetcode : Valid palindrome ii
• LeetCode : Longest palindromic substring

12.28

• 프로그래머스 : 올바른 괄호
• Leetcode : Valid anagram
• Leetcode : Validate IP Address

12.14

• 프로그래머스 : 타일장식물
• Leetcode : House robber
• Leetcode : Maximum sum of 3 non overlapping subarrays

12.07

• 프로그래머스 : 가장 먼 노드
• Leetcode : All Nodes Distance K in Binary Tree
• Leetcode : Minimum depth of binary tree

11.29

• 프로그래머스 : 영어 끝말잇기
• Leetcode : Isomorphic Strings
• Leetcode : Group Anagrams

11.23

• 프로그래머스 : 등굣길
• Leetcode : Best time to buy and sell stock
• Leetcode : Number of music playlists

11.16

• 프로그래머스 : 단어변환
• Leetcode : Buddy Strings
• Leetcode : Smallest String With Swaps

11.09

• 프로그래머스 : 타켓넘버
• Leetcode : Backspace String compare
• Leetcode : Sort Colors (설명)

11.02

• 프로그래머스 : K번째 수
• Leetcode : Relative Sort Array
• Leetcode : K Closest Points to Origin

10.26

• 프로그래머스 : 완주하지 못한 선수
• Leetcode : Top k frequent elements

10.19

• merge-two-sorted-lists
• merge-k-sorted-lists

10.12

• Delete node in a linked list
• Critical connections in a network

10.05

• Maximum depth of N ary tree
• Longest increasing path in a matrix

09.28

• Linked list cycle (설명)
• Linked list cycle II (설명 )

09.21

• Match order
• Two city scheduling
• Queue reconstruction by height

09.07

• Container with most water
• Daily temperature

08.30

• Uncommon Words from Two Sentences
• Top k frequent words

08.24

• Min Cost Climbing Stairs
• Dungeon Game

08.17

• Letter case permutation
• Permutations ii

08.10

• Missing number
• K similar strings

08.03

• Maximum subarray
• Maximum product subarray

07.28

• Middle of the linked list
• Find median from data stream

07.19

• Reverse Linked List
• Reverse Linked List II

07.12

• Path Sum
• Path Sum II
• Sum Root to Leaf Numbers

07.05

• Best Time to Buy and Sell Stock
• Best Time to Buy and Sell Stock with Cooldown
• Best Time to Buy and Sell Stock with Transaction Fee

06.29

• Rotate Array
• Rotate Image

06.21

• Peak Index in a Mountain Array
• Find Peak Element

06.15

• Shortest Unsorted Continuous Subarray
• Longest Consecutive Sequence

06.08

• Search in a Binary Search Tree
• Kth Smallest Element in a BST

06.01

• Climbing Stairs
• minimum score triangulation of polygon

05.25

• Verifying an alien dictionary
• Word Break II

05.18

• Shortest distance to a character
• Number of Longeast Increasing Subsequence
• Erect the Fence

05.11

• Valid Perfect SquareAssign Cookies
• Russian Doll Envelopes

05.04

• Valid Parentheses
• Longest Valid Parentheses

04.27

• Single Number
• Counting Bits

04.19

• Two Sum
• 3Sum
• 3Sum Closest

04.13

• Kth Largest Element in a Stream
• Cheapest Flights Within K Stops

04.05

• Find common characters
• Maximum frequency stack

03.30

• Intersection of two arrays
• Search in rotated sorted array

03.20

• Assign Cookies
• Course Schedule III