- Summary
- Contributor
- Soutions(1-976)
- 0001.Two-Sum
- 0002.Add-Two-Numbers
- 0003.Longest-Substring-Without-Repeating-Characters
- 0004.Median-of-Two-Sorted-Arrays
- 0005.Longest-Palindromic-Substring
- 0006.ZigZag-Conversion
- 0007.Reverse-Integer
- 0008.String-to-Integer--atoi
- 0009.Palindrome-Number
- 0010.Regular-Expression-Matching
- 0011.Container-With-Most-Water
- 0012.Integer-to-Roman
- 0013.Roman-to-Integer
- 0014.Longest-Common-Prefix
- 0015.3Sum
- 0016.3Sum-Closest
- 0017.Letter-Combinations-of-a-Phone-Number
- 0018.4Sum
- 0019.Remove-Nth-Node-From-End-of-List
- 0020.Valid-Parentheses
- 0021.Merge-Two-Sorted-Lists
- 0022.Generate-Parentheses
- 0023.Merge-k-Sorted-Lists
- 0024.Swap-Nodes-in-Pairs
- 0025.Reverse-Nodes-in-k-Group
- 0026.Remove-Duplicates-from-Sorted-Array
- 0027.Remove-Element
- 0028.Implement-strStr-
- 0029.Divide-Two-Integers
- 0030.Substring-with-Concatenation-of-All-Words
- 0031.Next-Permutation
- 0032.Longest-Valid-Parentheses
- 0033.Search-in-Rotated-Sorted-Array
- 0034.Find-First-and-Last-Position-of-Element-in-Sorted-Array
- 0035.Search-Insert-Position
- 0036.Valid-Sudoku
- 0037.Sudoku-Solver
- 0038.Count-and-Say
- 0039.Combination-Sum
- 0040.Combination-Sum-II
- 0041.First-Missing-Positive
- 0042.Trapping-Rain-Water
- 0043.Multiply-Strings
- 0044.Wildcard-Matching
- 0045.Jump-Game-II
- 0046.Permutations
- 0047.Permutations-II
- 0048.Rotate-Image
- 0049.Group-Anagrams
- 0050.Pow-x-n
- 0051.N-Queens
- 0052.N-Queens-II
- 0053.Maximum-Subarray
- 0054.Spiral-Matrix
- 0055.Jump-Game
- 0056.Merge-Intervals
- 0057.Insert-Interval
- 0058.Length-of-Last-Word
- 0059.Spiral-Matrix-II
- 0060.Permutation-Sequence
- 0061.Rotate-List
- 0062.Unique-Paths
- 0063.Unique-Paths-II
- 0064.Minimum-Path-Sum
- 0065.Valid-Number
- 0066.Plus-One
- 0067.Add-Binary
- 0068.Text-Justification
- 0069.Sqrt-x
- 0070.Climbing-Stairs
- 0071.Simplify-Path
- 0072.Edit-Distance
- 0073.Set-Matrix-Zeroes
- 0074.Search-a-2D-Matrix
- 0075.Sort-Colors
- 0076.Minimum-Window-Substring
- 0077.Combinations
- 0078.Subsets
- 0079.Word-Search
- 0080.Remove-Duplicates-from-Sorted-Array-II
- 0081.Search-in-Rotated-Sorted-Array-II
- 0082.Remove-Duplicates-from-Sorted-List-II
- 0083.Remove-Duplicates-from-Sorted-List
- 0084.Largest-Rectangle-in-Histogram
- 0085.Maximal-Rectangle
- 0086.Partition-List
- 0087.Scramble-String
- 0088.Merge-Sorted-Array
- 0089.Gray-Code
- 0090.Subsets-II
- 0091.Decode-Ways
- 0092.Reverse-Linked-List-II
- 0093.Restore-IP-Addresses
- 0094.Binary-Tree-Inorder-Traversal
- 0095.Unique-Binary-Search-Trees-II
- 0096.Unique-Binary-Search-Trees
- 0097.Interleaving-String
- 0098.Validate-Binary-Search-Tree
- 0099.Recover-Binary-Search-Tree
- 0100.Same-Tree
- 0101.Symmetric-Tree
- 0102.Binary-Tree-Level-Order-Traversal
- 0103.Binary-Tree-Zigzag-Level-Order-Traversal
- 0104.Maximum-Depth-of-Binary-Tree
- 0105.Construct-Binary-Tree-from-Preorder-and-Inorder-Traversal
- 0106.Construct-Binary-Tree-from-Inorder-and-Postorder-Traversal
- 0107.Binary-Tree-Level-Order-Traversal-II
- 0108.Convert-Sorted-Array-to-Binary-Search-Tree
- 0109.Convert-Sorted-List-to-Binary-Search-Tree
- 0110.Balanced-Binary-Tree
- 0111.Minimum-Depth-of-Binary-Tree
- 0112.Path-Sum
- 0113.Path-Sum-II
- 0114.Flatten-Binary-Tree-to-Linked-List
- 0115.Distinct-Subsequences
- 0116.Populating-Next-Right-Pointers-in-Each-Node
- 0117.Populating-Next-Right-Pointers-in-Each-Node-II
- 0118.Pascals-Triangle
- 0119.Pascals-Triangle-II
- 0120.Triangle
- 0121.Best-Time-to-Buy-and-Sell-Stock
- 0122.Best-Time-to-Buy-and-Sell-Stock-II
- 0123.Best-Time-to-Buy-and-Sell-Stock-III
- 0124.Binary-Tree-Maximum-Path-Sum
- 0125.Valid-Palindrome
- 0126.Word-Ladder-II
- 0127.Word-Ladder
- 0128.Longest-Consecutive-Sequence
- 0129.Sum-Root-to-Leaf-Numbers
- 0130.Surrounded-Regions
- 0131.Palindrome-Partitioning
- 0132.Palindrome-Partitioning-II
- 0133.Clone-Graph
- 0134.Gas-Station
- 0135.Candy
- 0136.Single-Number
- 0137.Single-Number-II
- 0138.Copy-List-with-Random-Pointer
- 0139.Word-Break
- 0140.Word-Break-II
- 0141.Linked-List-Cycle
- 0142.Linked-List-Cycle-II
- 0143.Reorder-List
- 0144.Binary-Tree-Preorder-Traversal
- 0145.Binary-Tree-Postorder-Traversal
- 0146.LRU-Cache
- 0147.Insertion-Sort-List
- 0148.Sort-List
- 0149.Max-Points-on-a-Line
- 0150.Evaluate-Reverse-Polish-Notation
- 0151.Reverse-Words-in-a-String
- 0152.Maximum-Product-Subarray
- 0153.Find-Minimum-in-Rotated-Sorted-Array
- 0154.Find-Minimum-in-Rotated-Sorted-Array-II
- 0155.Min-Stack
- 0160.Intersection-of-Two-Linked-Lists
- 0162.Find-Peak-Element
- 0164.Maximum-Gap
- 0165.Compare-Version-Numbers
- 0166.Fraction-to-Recurring-Decimal
- 0167.Two-Sum-II--Input-array-is-sorted
- 0168.Excel-Sheet-Column-Title
- 0169.Majority-Element
- 0171.Excel-Sheet-Column-Number
- 0172.Factorial-Trailing-Zeroes
- 0173.Binary-Search-Tree-Iterator
- 0174.Dungeon-Game
- 0179.Largest-Number
- 0187.Repeated-DNA-Sequences
- 0188.Best-Time-to-Buy-and-Sell-Stock-IV
- 0189.Rotate-Array
- 0190.Reverse-Bits
- 0191.Number-of-1-Bits
- 0198.House-Robber
- 0199.Binary-Tree-Right-Side-View
- 0200.Number-of-Islands
- 0201.Bitwise-AND-of-Numbers-Range
- 0202.Happy-Number
- 0203.Remove-Linked-List-Elements
- 0204.Count-Primes
- 0205.Isomorphic-Strings
- 0206.Reverse-Linked-List
- 0207.Course-Schedule
- 0208.Implement-Trie--Prefix-Tree
- 0209.Minimum-Size-Subarray-Sum
- 0210.Course-Schedule-II
- 0211.Add-and-Search-Word--Data-structure-design
- 0212.Word-Search-II
- 0213.House-Robber-II
- 0214.Shortest-Palindrome
- 0215.Kth-Largest-Element-in-an-Array
- 0216.Combination-Sum-III
- 0217.Contains-Duplicate
- 0218.The-Skyline-Problem
- 0219.Contains-Duplicate-II
- 0220.Contains-Duplicate-III
- 0221.Maximal-Square
- 0222.Count-Complete-Tree-Nodes
- 0223.Rectangle-Area
- 0224.Basic-Calculator
- 0225.Implement-Stack-using-Queues
- 0226.Invert-Binary-Tree
- 0227.Basic-Calculator-II
- 0228.Summary-Ranges
- 0229.Majority-Element-II
- 0230.Kth-Smallest-Element-in-a-BST
- 0231.Power-of-Two
- 0232.Implement-Queue-using-Stacks
- 0233.Number-of-Digit-One
- 0234.Palindrome-Linked-List
- 0235.Lowest-Common-Ancestor-of-a-Binary-Search-Tree
- 0236.Lowest-Common-Ancestor-of-a-Binary-Tree
- 0237.Delete-Node-in-a-Linked-List
- 0238.Product-of-Array-Except-Self
- 0239.Sliding-Window-Maximum
- 0240.Search-a-2D-Matrix-II
- 0241.Different-Ways-to-Add-Parentheses
- 0242.Valid-Anagram
- 0257.Binary-Tree-Paths
- 0258.Add-Digits
- 0260.Single-Number-III
- 0263.Ugly-Number
- 0264.Ugly-Number-II
- 0268.Missing-Number
- 0273.Integer-to-English-Words
- 0274.H-Index
- 0275.H-Index-II
- 0278.First-Bad-Version
- 0279.Perfect-Squares
- 0282.Expression-Add-Operators
- 0283.Move-Zeroes
- 0284.Peeking-Iterator
- 0287.Find-the-Duplicate-Number
- 0289.Game-of-Life
- 0290.Word-Pattern
- 0292.Nim-Game
- 0295.Find-Median-from-Data-Stream
- 0297.Serialize-and-Deserialize-Binary-Tree
- 0299.Bulls-and-Cows
- 0300.Longest-Increasing-Subsequence
- 0301.Remove-Invalid-Parentheses
- 0303.Range-Sum-Query--Immutable
- 0304.Range-Sum-Query-2D--Immutable
- 0306.Additive-Number
- 0307.Range-Sum-Query--Mutable
- 0309.Best-Time-to-Buy-and-Sell-Stock-with-Cooldown
- 0310.Minimum-Height-Trees
- 0312.Burst-Balloons
- 0313.Super-Ugly-Number
- 0315.Count-of-Smaller-Numbers-After-Self
- 0316.Remove-Duplicate-Letters
- 0318.Maximum-Product-of-Word-Lengths
- 0319.Bulb-Switcher
- 0321.Create-Maximum-Number
- 0322.Coin-Change
- 0324.Wiggle-Sort-II
- 0326.Power-of-Three
- 0327.Count-of-Range-Sum
- 0328.Odd-Even-Linked-List
- 0329.Longest-Increasing-Path-in-a-Matrix
- 0330.Patching-Array
- 0331.Verify-Preorder-Serialization-of-a-Binary-Tree
- 0332.Reconstruct-Itinerary
- 0334.Increasing-Triplet-Subsequence
- 0335.Self-Crossing
- 0336.Palindrome-Pairs
- 0337.House-Robber-III
- 0338.Counting-Bits
- 0341.Flatten-Nested-List-Iterator
- 0342.Power-of-Four
- 0343.Integer-Break
- 0344.Reverse-String
- 0345.Reverse-Vowels-of-a-String
- 0347.Top-K-Frequent-Elements
- 0349.Intersection-of-Two-Arrays
- 0350.Intersection-of-Two-Arrays-II
- 0352.Data-Stream-as-Disjoint-Intervals
- 0354.Russian-Doll-Envelopes
- 0355.Design-Twitter
- 0357.Count-Numbers-with-Unique-Digits
- 0363.Max-Sum-of-Rectangle-No-Larger-Than-K
- 0365.Water-and-Jug-Problem
- 0367.Valid-Perfect-Square
- 0368.Largest-Divisible-Subset
- 0371.Sum-of-Two-Integers
- 0372.Super-Pow
- 0373.Find-K-Pairs-with-Smallest-Sums
- 0374.Guess-Number-Higher-or-Lower
- 0375.Guess-Number-Higher-or-Lower-II
- 0376.Wiggle-Subsequence
- 0377.Combination-Sum-IV
- 0378.Kth-Smallest-Element-in-a-Sorted-Matrix
- 0380.Insert-Delete-GetRandom-O-1
- 0381.Insert-Delete-GetRandom-O-1--Duplicates-allowed
- 0382.Linked-List-Random-Node
- 0383.Ransom-Note
- 0384.Shuffle-an-Array
- 0385.Mini-Parser
- 0386.Lexicographical-Numbers
- 0387.First-Unique-Character-in-a-String
- 0388.Longest-Absolute-File-Path
- 0389.Find-the-Difference
- 0390.Elimination-Game
- 0391.Perfect-Rectangle
- 0392.Is-Subsequence
- 0393.UTF-8-Validation
- 0394.Decode-String
- 0395.Longest-Substring-with-At-Least-K-Repeating-Characters
- 0396.Rotate-Function
- 0397.Integer-Replacement
- 0398.Random-Pick-Index
- 0399.Evaluate-Division
- 0400.Nth-Digit
- 0401.Binary-Watch
- 0402.Remove-K-Digits
- 0403.Frog-Jump
- 0404.Sum-of-Left-Leaves
- 0405.Convert-a-Number-to-Hexadecimal
- 0406.Queue-Reconstruction-by-Height
- 0407.Trapping-Rain-Water-II
- 0409.Longest-Palindrome
- 0410.Split-Array-Largest-Sum
- 0412.Fizz-Buzz
- 0413.Arithmetic-Slices
- 0414.Third-Maximum-Number
- 0415.Add-Strings
- 0416.Partition-Equal-Subset-Sum
- 0417.Pacific-Atlantic-Water-Flow
- 0419.Battleships-in-a-Board
- 0420.Strong-Password-Checker
- 0421.Maximum-XOR-of-Two-Numbers-in-an-Array
- 0423.Reconstruct-Original-Digits-from-English
- 0424.Longest-Repeating-Character-Replacement
- 0432.All-O-one-Data-Structure
- 0433.Minimum-Genetic-Mutation
- 0434.Number-of-Segments-in-a-String
- 0435.Non-overlapping-Intervals
- 0436.Find-Right-Interval
- 0437.Path-Sum-III
- 0438.Find-All-Anagrams-in-a-String
- 0440.K-th-Smallest-in-Lexicographical-Order
- 0441.Arranging-Coins
- 0442.Find-All-Duplicates-in-an-Array
- 0443.String-Compression
- 0445.Add-Two-Numbers-II
- 0446.Arithmetic-Slices-II--Subsequence
- 0447.Number-of-Boomerangs
- 0448.Find-All-Numbers-Disappeared-in-an-Array
- 0449.Serialize-and-Deserialize-BST
- 0450.Delete-Node-in-a-BST
- 0451.Sort-Characters-By-Frequency
- 0452.Minimum-Number-of-Arrows-to-Burst-Balloons
- 0453.Minimum-Moves-to-Equal-Array-Elements
- 0454.4Sum-II
- 0455.Assign-Cookies
- 0456.132-Pattern
- 0457.Circular-Array-Loop
- 0458.Poor-Pigs
- 0459.Repeated-Substring-Pattern
- 0460.LFU-Cache
- 0461.Hamming-Distance
- 0462.Minimum-Moves-to-Equal-Array-Elements-II
- 0463.Island-Perimeter
- 0464.Can-I-Win
- 0466.Count-The-Repetitions
- 0467.Unique-Substrings-in-Wraparound-String
- 0468.Validate-IP-Address
- 0472.Concatenated-Words
- 0473.Matchsticks-to-Square
- 0474.Ones-and-Zeroes
- 0475.Heaters
- 0476.Number-Complement
- 0477.Total-Hamming-Distance
- 0479.Largest-Palindrome-Product
- 0480.Sliding-Window-Median
- 0481.Magical-String
- 0482.License-Key-Formatting
- 0483.Smallest-Good-Base
- 0485.Max-Consecutive-Ones
- 0486.Predict-the-Winner
- 0488.Zuma-Game
- 0491.Increasing-Subsequences
- 0492.Construct-the-Rectangle
- 0493.Reverse-Pairs
- 0494.Target-Sum
- 0495.Teemo-Attacking
- 0496.Next-Greater-Element-I
- 0498.Diagonal-Traverse
- 0500.Keyboard-Row
- 0501.Find-Mode-in-Binary-Search-Tree
- 0502.IPO
- 0503.Next-Greater-Element-II
- 0504.Base-7
- 0506.Relative-Ranks
- 0507.Perfect-Number
- 0508.Most-Frequent-Subtree-Sum
- 0513.Find-Bottom-Left-Tree-Value
- 0514.Freedom-Trail
- 0515.Find-Largest-Value-in-Each-Tree-Row
- 0516.Longest-Palindromic-Subsequence
- 0517.Super-Washing-Machines
- 0518.Coin-Change-2
- 0520.Detect-Capital
- 0521.Longest-Uncommon-Subsequence-I-
- 0522.Longest-Uncommon-Subsequence-II
- 0523.Continuous-Subarray-Sum
- 0524.Longest-Word-in-Dictionary-through-Deleting
- 0525.Contiguous-Array
- 0526.Beautiful-Arrangement
- 0529.Minesweeper
- 0530.Minimum-Absolute-Difference-in-BST
- 0532.K-diff-Pairs-in-an-Array
- 0535.Encode-and-Decode-TinyURL
- 0537.Complex-Number-Multiplication
- 0538.Convert-BST-to-Greater-Tree
- 0539.Minimum-Time-Difference
- 0540.Single-Element-in-a-Sorted-Array
- 0541.Reverse-String-II
- 0542.01-Matrix
- 0543.Diameter-of-Binary-Tree
- 0546.Remove-Boxes
- 0547.Friend-Circles
- 0551.Student-Attendance-Record-I
- 0552.Student-Attendance-Record-II
- 0553.Optimal-Division
- 0554.Brick-Wall
- 0556.Next-Greater-Element-III
- 0557.Reverse-Words-in-a-String-III
- 0560.Subarray-Sum-Equals-K
- 0561.Array-Partition-I
- 0563.Binary-Tree-Tilt
- 0564.Find-the-Closest-Palindrome
- 0565.Array-Nesting
- 0566.Reshape-the-Matrix
- 0567.Permutation-in-String
- 0572.Subtree-of-Another-Tree
- 0575.Distribute-Candies
- 0576.Out-of-Boundary-Paths
- 0581.Shortest-Unsorted-Continuous-Subarray
- 0583.Delete-Operation-for-Two-Strings
- 0587.Erect-the-Fence
- 0591.Tag-Validator
- 0592.Fraction-Addition-and-Subtraction
- 0593.Valid-Square
- 0594.Longest-Harmonious-Subsequence
- 0598.Range-Addition-II
- 0599.Minimum-Index-Sum-of-Two-Lists
- 0600.Non-negative-Integers-without-Consecutive-Ones
- 0605.Can-Place-Flowers
- 0606.Construct-String-from-Binary-Tree
- 0609.Find-Duplicate-File-in-System
- 0611.Valid-Triangle-Number
- 0617.Merge-Two-Binary-Trees
- 0621.Task-Scheduler
- 0623.Add-One-Row-to-Tree
- 0628.Maximum-Product-of-Three-Numbers
- 0629.K-Inverse-Pairs-Array
- 0630.Course-Schedule-III
- 0632.Smallest-Range-Covering-Elements-from-K-Lists
- 0633.Sum-of-Square-Numbers
- 0636.Exclusive-Time-of-Functions
- 0637.Average-of-Levels-in-Binary-Tree
- 0638.Shopping-Offers
- 0639.Decode-Ways-II
- 0640.Solve-the-Equation
- 0643.Maximum-Average-Subarray-I
- 0645.Set-Mismatch
- 0646.Maximum-Length-of-Pair-Chain
- 0647.Palindromic-Substrings
- 0648.Replace-Words
- 0649.Dota2-Senate
- 0650.2-Keys-Keyboard
- 0652.Find-Duplicate-Subtrees
- 0653.Two-Sum-IV--Input-is-a-BST
- 0654.Maximum-Binary-Tree
- 0655.Print-Binary-Tree
- 0657.Robot-Return-to-Origin
- 0658.Find-K-Closest-Elements
- 0659.Split-Array-into-Consecutive-Subsequences
- 0661.Image-Smoother
- 0662.Maximum-Width-of-Binary-Tree
- 0664.Strange-Printer
- 0665.Non-decreasing-Array
- 0667.Beautiful-Arrangement-II
- 0668.Kth-Smallest-Number-in-Multiplication-Table
- 0669.Trim-a-Binary-Search-Tree
- 0670.Maximum-Swap
- 0671.Second-Minimum-Node-In-a-Binary-Tree
- 0672.Bulb-Switcher-II
- 0673.Number-of-Longest-Increasing-Subsequence
- 0674.Longest-Continuous-Increasing-Subsequence
- 0675.Cut-Off-Trees-for-Golf-Event
- 0676.Implement-Magic-Dictionary
- 0677.Map-Sum-Pairs
- 0678.Valid-Parenthesis-String
- 0679.24-Game
- 0680.Valid-Palindrome-II
- 0682.Baseball-Game
- 0684.Redundant-Connection
- 0685.Redundant-Connection-II
- 0686.Repeated-String-Match
- 0687.Longest-Univalue-Path
- 0688.Knight-Probability-in-Chessboard
- 0689.Maximum-Sum-of-3-Non-Overlapping-Subarrays
- 0690.Employee-Importance
- 0691.Stickers-to-Spell-Word
- 0692.Top-K-Frequent-Words
- 0693.Binary-Number-with-Alternating-Bits
- 0695.Max-Area-of-Island
- 0696.Count-Binary-Substrings
- 0697.Degree-of-an-Array
- 0698.Partition-to-K-Equal-Sum-Subsets
- 0699.Falling-Squares
- 0712.Minimum-ASCII-Delete-Sum-for-Two-Strings
- 0713.Subarray-Product-Less-Than-K
- 0714.Best-Time-to-Buy-and-Sell-Stock-with-Transaction-Fee
- 0715.Range-Module
- 0717.1-bit-and-2-bit-Characters
- 0718.Maximum-Length-of-Repeated-Subarray
- 0719.Find-K-th-Smallest-Pair-Distance
- 0720.Longest-Word-in-Dictionary
- 0721.Accounts-Merge
- 0722.Remove-Comments
- 0724.Find-Pivot-Index
- 0725.Split-Linked-List-in-Parts
- 0726.Number-of-Atoms
- 0728.Self-Dividing-Numbers
- 0729.My-Calendar-I
- 0730.Count-Different-Palindromic-Subsequences
- 0731.My-Calendar-II
- 0732.My-Calendar-III
- 0733.Flood-Fill
- 0735.Asteroid-Collision
- 0736.Parse-Lisp-Expression
- 0738.Monotone-Increasing-Digits
- 0739.Daily-Temperatures
- 0740.Delete-and-Earn
- 0741.Cherry-Pickup
- 0709.To-Lower-Case
- 0743.Network-Delay-Time
- 0744.Find-Smallest-Letter-Greater-Than-Target
- 0745.Prefix-and-Suffix-Search
- 0746.Min-Cost-Climbing-Stairs
- 0747.Largest-Number-At-Least-Twice-of-Others
- 0748.Shortest-Completing-Word
- 0749.Contain-Virus
- 0752.Open-the-Lock
- 0753.Cracking-the-Safe
- 0754.Reach-a-Number
- 0756.Pyramid-Transition-Matrix
- 0757.Set-Intersection-Size-At-Least-Two
- 0761.Special-Binary-String
- 0429.N-ary-Tree-Level-Order-Traversal
- 0430.Flatten-a-Multilevel-Doubly-Linked-List
- 0762.Prime-Number-of-Set-Bits-in-Binary-Representation
- 0763.Partition-Labels
- 0764.Largest-Plus-Sign
- 0765.Couples-Holding-Hands
- 0427.Construct-Quad-Tree
- 0558.Logical-OR-of-Two-Binary-Grids-Represented-as-Quad-Trees
- 0559.Maximum-Depth-of-N-ary-Tree
- 0589.N-ary-Tree-Preorder-Traversal
- 0590.N-ary-Tree-Postorder-Traversal
- 0766.Toeplitz-Matrix
- 0767.Reorganize-String
- 0768.Max-Chunks-To-Make-Sorted-II
- 0769.Max-Chunks-To-Make-Sorted
- 0770.Basic-Calculator-IV
- 0771.Jewels-and-Stones
- 0700.Search-in-a-Binary-Search-Tree
- 0701.Insert-into-a-Binary-Search-Tree
- 0773.Sliding-Puzzle
- 0703.Kth-Largest-Element-in-a-Stream
- 0775.Global-and-Local-Inversions
- 0704.Binary-Search
- 0777.Swap-Adjacent-in-LR-String
- 0778.Swim-in-Rising-Water
- 0779.K-th-Symbol-in-Grammar
- 0780.Reaching-Points
- 0781.Rabbits-in-Forest
- 0782.Transform-to-Chessboard
- 0783.Minimum-Distance-Between-BST-Nodes
- 0784.Letter-Case-Permutation
- 0785.Is-Graph-Bipartite
- 0786.K-th-Smallest-Prime-Fraction
- 0787.Cheapest-Flights-Within-K-Stops
- 0788.Rotated-Digits
- 0789.Escape-The-Ghosts
- 0790.Domino-and-Tromino-Tiling
- 0791.Custom-Sort-String
- 0792.Number-of-Matching-Subsequences
- 0793.Preimage-Size-of-Factorial-Zeroes-Function
- 0794.Valid-Tic-Tac-Toe-State
- 0795.Number-of-Subarrays-with-Bounded-Maximum
- 0796.Rotate-String
- 0797.All-Paths-From-Source-to-Target
- 0798.Smallest-Rotation-with-Highest-Score
- 0799.Champagne-Tower
- 0705.Design-HashSet
- 0706.Design-HashMap
- 0801.Minimum-Swaps-To-Make-Sequences-Increasing
- 0802.Find-Eventual-Safe-States
- 0803.Bricks-Falling-When-Hit
- 0804.Unique-Morse-Code-Words
- 0805.Split-Array-With-Same-Average
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- 0824.Goat-Latin
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- 0828.Count-Unique-Characters-of-All-Substrings-of-a-Given-String
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- 0834.Sum-of-Distances-in-Tree
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- 0836.Rectangle-Overlap
- 0837.New-21-Game
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- 0840.Magic-Squares-In-Grid
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- 0844.Backspace-String-Compare
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- 0710.Random-Pick-with-Blacklist
- 0864.Shortest-Path-to-Get-All-Keys
- 0865.Smallest-Subtree-with-all-the-Deepest-Nodes
- 0866.Prime-Palindrome
- 0867.Transpose-Matrix
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- 0870.Advantage-Shuffle
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- 0927.Three-Equal-Parts
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- 0930.Binary-Subarrays-With-Sum
- 0931.Minimum-Falling-Path-Sum
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- 0933.Number-of-Recent-Calls
- 0934.Shortest-Bridge
- 0935.Knight-Dialer
- 0936.Stamping-The-Sequence
- 0937.Reorder-Data-in-Log-Files
- 0938.Range-Sum-of-BST
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- 0940.Distinct-Subsequences-II
- 0941.Valid-Mountain-Array
- 0942.DI-String-Match
- 0943.Find-the-Shortest-Superstring
- 0944.Delete-Columns-to-Make-Sorted
- 0945.Minimum-Increment-to-Make-Array-Unique
- 0946.Validate-Stack-Sequences
- 0947.Most-Stones-Removed-with-Same-Row-or-Column
- 0948.Bag-of-Tokens
- 0949.Largest-Time-for-Given-Digits
- 0950.Reveal-Cards-In-Increasing-Order
- 0951.Flip-Equivalent-Binary-Trees
- 0952.Largest-Component-Size-by-Common-Factor
- 0953.Verifying-an-Alien-Dictionary
- 0954.Array-of-Doubled-Pairs
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- 0958.Check-Completeness-of-a-Binary-Tree
- 0959.Regions-Cut-By-Slashes
- 0960.Delete-Columns-to-Make-Sorted-III
- 0961.N-Repeated-Element-in-Size-2N-Array
- 0962.Maximum-Width-Ramp
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- 0964.Least-Operators-to-Express-Number
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- 0966.Vowel-Spellchecker
- 0967.Numbers-With-Same-Consecutive-Differences
- 0968.Binary-Tree-Cameras
- 0969.Pancake-Sorting
- 0970.Powerful-Integers
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- 0974.Subarray-Sums-Divisible-by-K
- 0975.Odd-Even-Jump
- 0976.Largest-Perimeter-Triangle
- 0977.Squares-of-a-Sorted-Array
- 0978.Longest-Turbulent-Subarray
- 0979.Distribute-Coins-in-Binary-Tree
- 0980.Unique-Paths-III
- 0981.Time-Based-Key-Value-Store
- 0982.Triples-with-Bitwise-AND-Equal-To-Zero
- 0983.Minimum-Cost-For-Tickets
- 0984.String-Without-AAA-or-BBB
- 0985.Sum-of-Even-Numbers-After-Queries
- 0986.Interval-List-Intersections
- 0987.Vertical-Order-Traversal-of-a-Binary-Tree
- 0988.Smallest-String-Starting-From-Leaf
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- 0990.Satisfiability-of-Equality-Equations
- 0991.Broken-Calculator
- 0992.Subarrays-with-K-Different-Integers
- 0993.Cousins-in-Binary-Tree
- 0994.Rotting-Oranges
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- 0996.Number-of-Squareful-Arrays
- 0997.Find-the-Town-Judge
- 0998.Maximum-Binary-Tree-II
- 0999.Available-Captures-for-Rook
- 1000.Minimum-Cost-to-Merge-Stones
- 1001.Grid-Illumination
- 1002.Find-Common-Characters
- 1003.Check-If-Word-Is-Valid-After-Substitutions
- 1004.Max-Consecutive-Ones-III
- 1005.Maximize-Sum-Of-Array-After-K-Negations
- 1006.Clumsy-Factorial
- 1007.Minimum-Domino-Rotations-For-Equal-Row
- 1008.Construct-Binary-Search-Tree-from-Preorder-Traversal
- 1009.Complement-of-Base-10-Integer
- 1010.Pairs-of-Songs-With-Total-Durations-Divisible-by-60
- 1011.Capacity-To-Ship-Packages-Within-D-Days
- 1012.Numbers-With-Repeated-Digits
- 1013.Partition-Array-Into-Three-Parts-With-Equal-Sum
- 1014.Best-Sightseeing-Pair
- 1015.Smallest-Integer-Divisible-by-K
- 1016.Binary-String-With-Substrings-Representing-1-To-N
- 1017.Convert-to-Base--2
- 1018.Binary-Prefix-Divisible-By-5
- 1019.Next-Greater-Node-In-Linked-List
- 1020.Number-of-Enclaves
- 1021.Remove-Outermost-Parentheses
- 1022.Sum-of-Root-To-Leaf-Binary-Numbers
- 1023.Camelcase-Matching
- 1024.Video-Stitching
- 1025.Divisor-Game
- 1027.Longest-Arithmetic-Sequence
- 1026.Maximum-Difference-Between-Node-and-Ancestor
- 1028.Recover-a-Tree-From-Preorder-Traversal
- 1030.Matrix-Cells-in-Distance-Order
- 1029.Two-City-Scheduling
- 1031.Maximum-Sum-of-Two-Non-Overlapping-Subarrays
- 1032.Stream-of-Characters
- 1033.Moving-Stones-Until-Consecutive
- 1034.Coloring-A-Border
- 1035.Uncrossed-Lines
- 1036.Escape-a-Large-Maze
- 1039.Minimum-Score-Triangulation-of-Polygon
- 1160.Find-Words-That-Can-Be-Formed-by-Characters
- 1040.Moving-Stones-Until-Consecutive-II
- 1038.Binary-Search-Tree-to-Greater-Sum-Tree
- 1037.Valid-Boomerang
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- 1162.As-Far-from-Land-as-Possible
- 1041.Robot-Bounded-In-Circle
- 1042.Flower-Planting-With-No-Adjacent
- 1043.Partition-Array-for-Maximum-Sum
- 1044.Longest-Duplicate-Substring
- 1046.Last-Stone-Weight
- 1047.Remove-All-Adjacent-Duplicates-In-String
- 1048.Longest-String-Chain
- 1049.Last-Stone-Weight-II
- 1163.Last-Substring-in-Lexicographical-Order
- 1051.Height-Checker
- 1052.Grumpy-Bookstore-Owner
- 1053.Previous-Permutation-With-One-Swap
- 1054.Distant-Barcodes
- 1074.Number-of-Submatrices-That-Sum-to-Target
- 1071.Greatest-Common-Divisor-of-Strings
- 1072.Flip-Columns-For-Maximum-Number-of-Equal-Rows
- 1073.Adding-Two-Negabinary-Numbers
- 1078.Occurrences-After-Bigram
- 1080.Insufficient-Nodes-in-Root-to-Leaf-Paths
- 1081.Smallest-Subsequence-of-Distinct-Characters
- 1079.Letter-Tile-Possibilities
- 1089.Duplicate-Zeros
- 1090.Largest-Values-From-Labels
- 1092.Shortest-Common-Supersequence-
- 1091.Shortest-Path-in-Binary-Matrix
- 1093.Statistics-from-a-Large-Sample
- 1094.Car-Pooling
- 1095.Find-in-Mountain-Array
- 1096.Brace-Expansion-II
- 1104.Path-In-Zigzag-Labelled-Binary-Tree
- 1103.Distribute-Candies-to-People
- 1105.Filling-Bookcase-Shelves
- 1106.Parsing-A-Boolean-Expression
- 1108.Defanging-an-IP-Address
- 1109.Corporate-Flight-Bookings
- 1110.Delete-Nodes-And-Return-Forest
- 1111.Maximum-Nesting-Depth-of-Two-Valid-Parentheses-Strings
- 1286.Iterator-for-Combination
- 1291.Sequential-Digits
- 1122.Relative-Sort-Array
- 1123.Lowest-Common-Ancestor-of-Deepest-Leaves
- 1124.Longest-Well-Performing-Interval
- 1125.Smallest-Sufficient-Team
- 1287.Element-Appearing-More-Than-25p-In-Sorted-Array
- 1288.Remove-Covered-Intervals
- 1289.Minimum-Falling-Path-Sum-II
- 1128.Number-of-Equivalent-Domino-Pairs
- 1130.Minimum-Cost-Tree-From-Leaf-Values
- 1129.Shortest-Path-with-Alternating-Colors
- 1131.Maximum-of-Absolute-Value-Expression
- 1299.Replace-Elements-with-Greatest-Element-on-Right-Side
- 1300.Sum-of-Mutated-Array-Closest-to-Target
- 1301.Number-of-Paths-with-Max-Score
- 1137.N-th-Tribonacci-Number
- 1138.Alphabet-Board-Path
- 1139.Largest-1-Bordered-Square
- 1140.Stone-Game-II
- 1313.Decompress-Run-Length-Encoded-List
- 1314.Matrix-Block-Sum
- 1315.Sum-of-Nodes-with-Even-Valued-Grandparent
- 1316.Distinct-Echo-Substrings
- 1144.Decrease-Elements-To-Make-Array-Zigzag
- 1145.Binary-Tree-Coloring-Game
- 1146.Snapshot-Array
- 1143.Longest-Common-Subsequence
- 1147.Longest-Chunked-Palindrome-Decomposition
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- 1329.Sort-the-Matrix-Diagonally
- 1302.Deepest-Leaves-Sum
- 1330.Reverse-Subarray-To-Maximize-Array-Value
- 1331.Rank-Transform-of-an-Array
- 1154.Day-of-the-Year
- 1156.Swap-For-Longest-Repeated-Character-Substring
- 1157.Online-Majority-Element-In-Subarray
- 1155.Number-of-Dice-Rolls-With-Target-Sum
- 1171.Remove-Zero-Sum-Consecutive-Nodes-from-Linked-List
- 1172.Dinner-Plate-Stacks
- 1169.Invalid-Transactions
- 1170.Compare-Strings-by-Frequency-of-the-Smallest-Character
- 1360.Number-of-Days-Between-Two-Dates
- 1361.Validate-Binary-Tree-Nodes
- 1362.Closest-Divisors
- 1363.Largest-Multiple-of-Three
- 1175.Prime-Arrangements
- 1177.Can-Make-Palindrome-from-Substring
- 1178.Number-of-Valid-Words-for-Each-Puzzle
- 1184.Distance-Between-Bus-Stops
- 1186.Maximum-Subarray-Sum-with-One-Deletion
- 1185.Day-of-the-Week
- 1187.Make-Array-Strictly-Increasing
- 1189.Maximum-Number-of-Balloons
- 1190.Reverse-Substrings-Between-Each-Pair-of-Parentheses
- 1191.K-Concatenation-Maximum-Sum
- 1192.Critical-Connections-in-a-Network
- 1200.Minimum-Absolute-Difference
- 1201.Ugly-Number-III
- 1202.Smallest-String-With-Swaps
- 1203.Sort-Items-by-Groups-Respecting-Dependencies
- 1207.Unique-Number-of-Occurrences
- 1209.Remove-All-Adjacent-Duplicates-in-String-II
- 1208.Get-Equal-Substrings-Within-Budget
- 1210.Minimum-Moves-to-Reach-Target-with-Rotations
- 1217.Play-with-Chips
- 1218.Longest-Arithmetic-Subsequence-of-Given-Difference
- 1219.Path-with-Maximum-Gold
- 1220.Count-Vowels-Permutation
- 1206.Design-Skiplist
- 1221.Split-a-String-in-Balanced-Strings
- 1222.Queens-That-Can-Attack-the-King
- 1223.Dice-Roll-Simulation
- 1224.Maximum-Equal-Frequency
- 1232.Check-If-It-Is-a-Straight-Line
- 1233.Remove-Sub-Folders-from-the-Filesystem
- 1234.Replace-the-Substring-for-Balanced-String
- 1235.Maximum-Profit-in-Job-Scheduling
- 1237.Find-Positive-Integer-Solution-for-a-Given-Equation
- 1238.Circular-Permutation-in-Binary-Representation
- 1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters
- 1240.Tiling-a-Rectangle-with-the-Fewest-Squares
- 1227.Airplane-Seat-Assignment-Probability
- 1247.Minimum-Swaps-to-Make-Strings-Equal
- 1248.Count-Number-of-Nice-Subarrays
- 1249.Minimum-Remove-to-Make-Valid-Parentheses
- 1250.Check-If-It-Is-a-Good-Array
- 1252.Cells-with-Odd-Values-in-a-Matrix
- 1253.Reconstruct-a-2-Row-Binary-Matrix
- 1254.Number-of-Closed-Islands
- 1255.Maximum-Score-Words-Formed-by-Letters
- 1260.Shift-2D-Grid
- 1261.Find-Elements-in-a-Contaminated-Binary-Tree
- 1262.Greatest-Sum-Divisible-by-Three
- 1263.Minimum-Moves-to-Move-a-Box-to-Their-Target-Location
- 1266.Minimum-Time-Visiting-All-Points
- 1267.Count-Servers-that-Communicate
- 1268.Search-Suggestions-System
- 1269.Number-of-Ways-to-Stay-in-the-Same-Place-After-Some-Steps
- 1275.Find-Winner-on-a-Tic-Tac-Toe-Game
- 1276.Number-of-Burgers-with-No-Waste-of-Ingredients
- 1277.Count-Square-Submatrices-with-All-Ones
- 1278.Palindrome-Partitioning-III
- 1281.Subtract-the-Product-and-Sum-of-Digits-of-an-Integer
- 1282.Group-the-People-Given-the-Group-Size-They-Belong-To
- 1283.Find-the-Smallest-Divisor-Given-a-Threshold
- 1284.Minimum-Number-of-Flips-to-Convert-Binary-Matrix-to-Zero-Matrix
- 1290.Convert-Binary-Number-in-a-Linked-List-to-Integer
- 1292.Maximum-Side-Length-of-a-Square-with-Sum-Less-than-or-Equal-to-Threshold
- 1293.Shortest-Path-in-a-Grid-with-Obstacles-Elimination
- 1295.Find-Numbers-with-Even-Number-of-Digits
- 1296.Divide-Array-in-Sets-of-K-Consecutive-Numbers
- 1297.Maximum-Number-of-Occurrences-of-a-Substring
- 1298.Maximum-Candies-You-Can-Get-from-Boxes
- 1304.Find-N-Unique-Integers-Sum-up-to-Zero
- 1305.All-Elements-in-Two-Binary-Search-Trees
- 1306.Jump-Game-III
- 1307.Verbal-Arithmetic-Puzzle
- 1309.Decrypt-String-from-Alphabet-to-Integer-Mapping
- 1310.XOR-Queries-of-a-Subarray
- 1311.Get-Watched-Videos-by-Your-Friends
- 1312.Minimum-Insertion-Steps-to-Make-a-String-Palindrome
- 1317.Convert-Integer-to-the-Sum-of-Two-No-Zero-Integers
- 1318.Minimum-Flips-to-Make-a-OR-b-Equal-to-c
- 1319.Number-of-Operations-to-Make-Network-Connected
- 1320.Minimum-Distance-to-Type-a-Word-Using-Two-Fingers
- 1342.Number-of-Steps-to-Reduce-a-Number-to-Zero
- 1343.Number-of-Sub-arrays-of-Size-K-and-Average-Greater-than-or-Equal-to-Threshold
- 1344.Angle-Between-Hands-of-a-Clock
- 1345.Jump-Game-IV
- 1323.Maximum-69-Number
- 1324.Print-Words-Vertically
- 1325.Delete-Leaves-With-a-Given-Value
- 1326.Minimum-Number-of-Taps-to-Open-to-Water-a-Garden
- 1332.Remove-Palindromic-Subsequences
- 1333.Filter-Restaurants-by-Vegan-Friendly-Price-and-Distance
- 1334.Find-the-City-With-the-Smallest-Number-of-Neighbors-at-a-Threshold-Distance
- 1335.Minimum-Difficulty-of-a-Job-Schedule
- 1356.Sort-Integers-by-The-Number-of-1-Bits
- 1357.Apply-Discount-Every-n-Orders
- 1358.Number-of-Substrings-Containing-All-Three-Characters
- 1359.Count-All-Valid-Pickup-and-Delivery-Options
- 1337.The-K-Weakest-Rows-in-a-Matrix
- 1338.Reduce-Array-Size-to-The-Half
- 1339.Maximum-Product-of-Splitted-Binary-Tree
- 1340.Jump-Game-V
- 1346.Check-If-N-and-Its-Double-Exist
- 1347.Minimum-Number-of-Steps-to-Make-Two-Strings-Anagram
- 1348.Tweet-Counts-Per-Frequency
- 1349.Maximum-Students-Taking-Exam
- 1351.Count-Negative-Numbers-in-a-Sorted-Matrix
- 1352.Product-of-the-Last-K-Numbers
- 1353.Maximum-Number-of-Events-That-Can-Be-Attended
- 1354.Construct-Target-Array-With-Multiple-Sums