- 7.Reverse Integer
- 9.Palindrome Number
- 13.Roman to Integer
- 19.Remove Nth Node from End of List
- 20.Valid Parentheses
- 21.Merge Two Sorted Lists
- 22.Generate Parentheses
- 26.Remove Duplicates from Sorted Array
- 27.Remove Element
- 28.Implement strStr()
- 35.Search Insert Position
- 38.Count and Say
- 46.Permutations
- 53.Maximum Subarray
- 58.Length of Last Word
- 59.Spiral Matrix II
- 66.Plus One
- 67.Add Binary
- 69.Sqrt
- 70.Climbing Stairs
- 77.Combinations
- 78.Subsets
- 83.Remove Duplicates from Sorted List
- 88.Merge Sorted Array
- 104.Maximum Depth of Binary Tree
- 107.Binary Tree Level Order Traversal II
- 108.Convert Sorted Array to Binary Search Tree
- 100.Same Tree
- 101.Symmetric Tree
- 105.Construct Binary Tree from Preorder and Inorder Traversal
- 110.Balanced Binary Tree
- 111.Minimum Depth of Binary Tree
- 112.Path Sum
- 118.Pascals Triangle
- 119.Pascals Triangle II
- 121.Best Time to Buy and Sell Stock
- 125.Valid Palindrome
- 131.Palindrome Partitioning
- 139.Word Break
- 140.Word Break II
- 141.Linked List Cycle
- 143.Reorder List
- 155.Min Stack
- 167.Two Sum II- Input Array is Sorted
- 168.Excel Sheet Column Title
- 169.Majority Element
- 171.Excel Sheet Column Number
- 172.Factorial Trailing Zeroes
- 175.Combine Two Tables
- 181.Employee Earning More Than Their Managers
- 182.Duplicate Emails
- 183.Customers Who Never Order
- 189.Rotate Array
- 191.Number of 1 Bits
- 193.Valid Phone Numbers
- 195.Tenth Line
- 196.Delete Duplicate Emails
- 197.Rising Temperature
- 198.House Robber
- 202.Happy Number
- 203.Remove Linked List Elements
- 204.Count Primes
- 205.Isomorphic Strings
- 206.Reverse Linked List
- 217.Contains Duplicate
- 219.Contains Duplicate II
- 225.Implement Stack Using Queues
- 226.Invert Binary Tree
- 231.Power of Two
- 232.Implement Queue Using Stack
- 234.Palindrome Linked List
- 237.Delete Node in a Linked List
- 240.Search a 2D Matrix II
- 242.Valid Anagram
- 257.Binary Tree Paths
- 258.Add Digits
- 263.Ugly Numbers
- 268.Missing Number
- 278.First Bad Version
- 284.Peeking Iterator
- 290.Word Pattern
- 282.Nim Game
- 303.Range Sum Query Immutable
- 338.Counting Bits
- 342.Power of Four
- 344.Reverse String
- 345.Reverse Vowels of a String
- 349.Intersection of Two Arrays
- 350.Intersection of Two Arrays II
- 367.Valid Perfect Square
- 371.Sum of Two Integers
- 374.Guess Number Higher or Lower
- 383.Ransom Note
- 387.First Unique Character in a String
- 400.Nth Digit
- 401.Binary Watch
- 404.Sum of Left Leaves
- 405.Convert A Number to Hexadecimal
- 409.Longest Palindrome
- 412.Fizz Buzz
- 414.Third Maximum Number
- 415.Add Strings
- 427.Construct Quad Tree
- 429.N Ary Tree Level Order Traversal
- 434.Number of Segments in a String
- 437.Path Sum III
- 438.Find All Anagrams in a String
- 441.Arranging Coins
- 443.String Compression
- 447.Number of Boomerangs
- 448.Find All Numbers Disappeared in an Array
- 453.Minimum Moves to Equal Array Elements
- 455.Assign Cookies
- 459.Repeated Substring Pattern
- 461.Hamming Distance
- 463.Island Perimeter
- 475.Heaters
- 476.Number Complement
- 482.License Key Formatting
- 485.Max Consecutive Ones
- 492.Construct the Rectangle
- 496.Next Greater Element I
- 500.Keyboard Row
- 501.Find Mode in Binary Tree
- 504.Base 7
- 506.Relative Ranks
- 507.Perfect Number
- 509.Fibonacci Number
- 520.Detect Capital
- 521.Longest Uncommon Subsequence I
- 530.Minimum Absolute Difference in BST
- 532.K-diff Pairs in an Array
- 535.Encode and Decode TinyURL
- 538.Convert BST to Greater Tree
- 541.Reverse String II
- 543.Diameter of Binary Tree
- 551.Student Attendace Record I
- 557.Reverse Words in a String
- 558.Quad Tree Intersection
- 559.Maxmium Depth of N Ary Tree
- 561.Array Partition I
- 563.Binary Tree Tilt
- 566.Reshape the Matrix
- 572.Subtree of Another Tree
- 575.Distribute Candies
- 581.Shortest Unsorted Continuous Subarray
- 589.N Ary Tree Preorder Traversal
- 590.N Ary Tree Postorder Traversal
- 594.Longest Harmonious Subsequence
- 595.Big Countires
- 596.Classes More Than 5 Students
- 598.Range Addition II
- 599.Minimum Index of Two Lists
- 605.Can Place Flowers
- 606.Construct String from Binary Tree
- 617.Merge Two Binary Trees
- 620.Not Boring Movies
- 627.Swap Salary
- 628.Maximum Product of Three Numbers
- 633.Sum of Square Numbers
- 637.Average of Levels in Binary Tree
- 643.Maximum Average Subarray I
- 645.Set Mismatch
- 653.Two Sum IV - Input is a BST
- 654.Maximum Binary Tree
- 657.Robot Return to Origin
- 661.Image Smoother
- 665.Non-Decreasing Array
- 669.Trim a Binary Search Tree
- 671.Second Minimum Node in a Binary Tree
- 680.Valid Palindrome II
- 682.Baseball Game
- 686.Repeated String Match
- 687.Longest Univalue Path
- 690.Employee Importance
- 693.Binary Number with Alternating Bits
- 696.Count Binary Substring
- 697.Degree of an Array
- 700.Search in a Binary Search Tree
- 701.Insert Into a Binary Search Tree
- 703.Kth Largest Element in a Stream
- 704.Binary Search
- 705.Design Hashset
- 706.Design Hashmap
- 707.Design Linked List
- 709.To Lower Case
- 713.Subarray Product Less Than K
- 717.1 Bit and 2 Bit Characters
- 720.Longest Word in Dictionary
- 724.Find Pivot Index
- 728.Self Dividing Numbers
- 733.Flood Fill
- 739.每日温度
- 744.Find Smallest Letter Greater Than Target
- 746.Min Cost Climbing Stairs
- 747.Largest Number At Least Twice Of Others
- 748.Shortest Completing Word
- 754.Reach A Number
- 762.Prime Number of Set Bits in Binary Representation
- 766.Toeplitz Matrix
- 771.Jewels and Stones
- 783.Minimum Distance Between BST Nodes
- 784.Letter Case Permutation
- 788.Rotated Digits
- 796.Rotate String
- 804.Unique Morse Code Words
- 806.Number of Lines to Write String
- 807.Max Increase to Keep City Skyline
- 811.Subdomain Visit Count
- 812.Largest Triangle Area
- 814.Binary Tree Pruning
- 819.Most Common Word
- 821.Shortest Distance to a Character
- 824.Goat Latin
- 829.Consecutive Numbers Sum
- 830.Position of Large Groups
- 831.Masking Personal Information
- 832,Flipping an Image
- 833.Find And Replace in String
- 835,Image Overlap
- 836.Rectangle Overlap
- 840.Magic Squares In Grid
- 844.Backspace String Compare
- 848.Shifting Letters
- 849.Maximize Distance to Closest Person
- 852.Peak Index in A Mountain Array
- 853.Car Fleet
- 855.Exam Room
- 859.Buddy Strings
- 860.Lemonade Change
- 861.Score After Flipping Matrix
- 864.Shortest Path to Get All Keys
- 865.Smallest Subtree with all the Deepest Nodes
- 866.Prime Palindrome
- 867.transpose
- 868.Binary Gap
- 872.Leaf Similar Trees
- 874.Walking Robot Simulation
- 876.Middle of the Linked List
- 883.Projection Area of 3D Shapes
- 884.Uncommon Words from Two Sentences
- 887.Super Egg Drop
- 888.Fair Candy Swap
- 892.Surface Area of 3D Shapes
- 893.Groups of Special Equivalent Strings
- 894.All Possible Full Binary Trees
- 896.monotonic array
- 897.increasing order search tree
- 900.RLE Iterator
- 901.Online Stock Span
- 905.Sort Array by Parity
- 908.Smallest Range I
- 910.Smallest Range II
- 913.Cat and Mouse
- 914.X of a Kind in a Deck of Cards
- 915.Partition Array into Disjoint Intervals
- 916.Word Subsets
- 917.Reverse Only Letters
- 922.Sort Array by Parity II
- 925.Long Pressed Name
- 929.Unique Email Address
- 937.Reorder Log Files
- 938.Range Sum of BST
- 941.Valid Mountain Array
- 942.Di String Match
- 944.Delete Column to Make Sorted
- 949.Largest Time For Given Digits
- 950.Reveal Cards in Increasing Order
- 953.Verifying an Alien Dictionary
- 961.N Repeated Element in Size 2N Array
- 965.Univalued Binary Tree
- 970.Powerful Integers
- 974.Subarray Sums Divisible By K
- 976.Largest Perimeter Triangle
- 977.Squares of a Sorted Array
- 985.Sum of Even Numbers After Queries
- 989.Add to Array-Form of Integer
- 990.Satisfiability of Equality Equations
- 993.Cousins in Binary Tree
- 994.Rotting Oranges
- 997.Find the Town Judge
- 999.Available Captures for Rook
- 1002.Find Common Characters
- 1005.Maximise Sum of Array after K Negations
- 1008.Construct Binary Search Tree from Preorder Traversal
- 1021.Remove Outermost Parentheses
- 1025.Divisor Game
- 1029.Tow City Scheduling
- 1030.Matrix Cells in Distance Order
- 1033.Moving Stones Until Consecutive
- 1037.Valid Boomerang
- 1038.Binary Search Tree to Greater Sum Tree
- 1041.Robot Bounded in Circle
- 1042.Flower Planting with no Adjacent
- 1046.Last Stone Weight
- 1089.Duplicate Zeros
- 1013.Partition Array Into Three Parts with Equal Sum
- 1018.Binary Prefix Divisible By 5
- 1022.Sum of Root To Leaf Binary Numbers
- 1071.Greatest Common Divisor of Strings
- 1079.Letter Tile Possibilities
- 1103.Distribute Candies to People
- 1114.Print in Order
- 1115.Print FooBar Alternately
- 1116.Print Zero Even Odd
- 1117.Building H2O
- 1128.Number of Equivalent Domino Pairs
- 1169.Invalid Transactions
- 1176.Diet Plan Performance
- 1282.用户分组
- 1329.Sort the Matrix Diagonally
- 1379.Find a Corresponding Node of a Binary Tree in a Clone of That Tree
- 1395.Count Number of Teams
- ByteDance
- 面试题 64
- 面试题 16.01
- 面试题 16.18
- 面试题 29
- 面试题 46