Files

src
- 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
- 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-Pascal's-Triangle
- 0119-Pascal's-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
- 0165-Compare-Version-Numbers
- 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
- 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
- 0208-Implement-Trie-(Prefix-Tree)
- 0209-Minimum-Size-Subarray-Sum
- 0211-Add-and-Search-Word-Data-structure-design
- 0213-House-Robber-II
- 0215-Kth-Largest-Element-in-an-Array
- 0216-Combination-Sum-III
- 0217-Contains-Duplicate
- 0219-Contains-Duplicate-II
- 0220-Contains-Duplicate-III
- 0222-Count-Complete-Tree-Nodes
- 0226-Invert-Binary-Tree
- 0228-Summary-Ranges
- 0229-Majority-Element-II
- 0230-Kth-Smallest-Element-in-a-BST
- 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
- 0240-Search-a-2D-Matrix-II
- 0241-Different-Ways-to-Add-Parentheses
- 0242-Valid-Anagram
- 0257-Binary-Tree-Paths
- 0260-Single-Number-III
- 0268-Missing-Number
- 0279-Perfect-Squares
- 0283-Move-Zeroes
- 0287-Find-the-Duplicate-Number
- 0289-Game-of-Life
- 0290-Word-Pattern
- 0300-Longest-Increasing-Subsequence
- 0303-Range-Sum-Query-Immutable
- 0309-Best-Time-to-Buy-and-Sel-Stock-with-Cooldown
- 0322-Coin-Change
- 0325-Maximum-Size-Subarray-Sum-Equals-k
- 0328-Odd-Even-Linked-List
- 0337-House-Robber-III
- 0341-Flatten-Nested-List-Iterator
- 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
- 0354-Russian-Doll-Envelopes
- 0377-Combination-Sum-IV
- 0389-Find-the-Difference
- 0392-Is-Subsequence
- 0401-Binary-Watch
- 0404-Sum-of-Left-Leaves
- 0416-Partition-Equal-Subset-Sum
- 0435-Non-overlapping-Intervals
- 0437-Path-Sum-III
- 0438-Find-All-Anagrams-in-a-String
- 0445-Add-Two-Numbers-II
- 0447-Number-of-Boomerangs
- 0450-Delete-Node-in-a-BST
- 0451-Sort-Characters-By-Frequency
- 0454-4Sum-II
- 0455-Assign-Cookies
- 0474-Ones-and-Zeroes
- 0486-Predict-the-Winner
- 0494-Target-Sum
- 0496-Next-Greater-Element-I
- 0503-Next-Greater-Element-II
- 0525-Contiguous-Array
- 0530-Minimum-Absolute-Difference-in-BST
- 0543-Diameter-of-Binary-Tree
- 0547-Friend-Circles
- 0560-Subarray-Sum-Equals-K
- 0637-Average-of-Levels-in-Binary-Tree
- 0654-Maximum-Binary-Tree
- 0684-Redundant-Connection
- 0687-Longest-Univalue-Path
- 0739-Daily-Temperatures
- 0742-Closest-Leaf-in-a-Binary-Tree
- 0834-Sum-of-Distances-in-Tree
- 0844-Backspace-String-Compare
- 0845-Longest-Mountain-in-Array
- 0846-Hand-of-Straights
- 0852-Peak-Index-in-a-Mountain-Array
- 0872-Leaf-Similar-Trees
- 0873-Length-of-Longest-Fibonacci-Subsequence
- 0874-Walking-Robot-Simulation
- 0901-Online-Stock-Span
- 0907-Sum-of-Subarray-Minimums
- 0917-Reverse-Only-Letters
- 0918-Maximum-Sum-Circular-Subarray
- 0919-Complete-Binary-Tree-Inserter
- 0920-Number-of-Music-Playlists
- 0921-Minimum-Add-to-Make-Parentheses-Valid
- 0922-Sort-Array-By-Parity-II
- 0923-3Sum-With-Multiplicity
- 0925-Long-Pressed-Name
- 0926-Flip-String-to-Monotone-Increasing
- 0927-Three-Equal-Parts
- 0929-Unique-Email-Addresses
- 0930-Binary-Subarrays-With-Sum
- 0931-Minimum-Falling-Path-Sum
- 0932-Beautiful-Array
- 0933-Number-of-Recent-Calls
- 0934-Shortest-Bridge
- 0935-Knight-Dialer
- 0937-Reorder-Log-Files
- 0938-Range-Sum-of-BST
- 0939-Minimum-Area-Rectangle
- 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
- 0953-Verifying-an-Alien-Dictionary
- 0954-Array-of-Doubled-Pairs
- 0955-Delete-Columns-to-Make-Sorted-II
- 0956-Tallest-Billboard
- 0957-Prison-Cells-After-N-Days
- 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
- 0963-Minimum-Area-Rectangle-II
- 0965-Univalued-Binary-Tree
- 0966-Vowel-Spellchecker
- 0967-Numbers-With-Same-Consecutive-Differences
- 0969-Pancake-Sorting
- 0970-Powerful-Integers
- 0971-Flip-Binary-Tree-To-Match-Preorder-Traversal
- 0972-Equal-Rational-Numbers
- 0973-K-Closest-Points-to-Origin
- 0974-Subarray-Sums-Divisible-by-K
- 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
- 0989-Add-to-Array-Form-of-Integer
- 0990-Satisfiability-of-Equality-Equations
- 0991-Broken-Calculator
- 0992-Subarrays-with-K-Different-Integers
- 0993-Cousins-in-Binary-Tree
- 0994-Rotting-Oranges
- 0995-Minimum-Number-of-K-Consecutive-Bit-Flips
- 0996-Number-of-Squareful-Arrays
- 0997-Find-the-Town-Judge
- 0998-Maximum-Binary-Tree-II
- 0999-Available-Captures-for-Rook
- 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
  - 1008.cpp
  - 1008.py
README.md