Folders and files
| Name | Name | Last commit date | ||
|---|---|---|---|---|
continually updating 😃.
- 1. Two Sum lookup table; hash table
- 4. Median of Two Sorted Arrays binary search; divide and conquer
- 11. Container With Most Water double index; array
- 15. 3Sum double index; array
- 26. Remove Duplicates from Sorted Array double index; array
- 27. Remove Element double index; array
- 48. Rotate Image
- 53. Maximum Subarray dynamic programming
- 75. Sort Colors sort; array
- 80. Remove Duplicates from Sorted Array II double index; array
- 88. Merge Sorted Array sort; array
- 121. Best Time to Buy and Sell Stock dynamic programming; array
- 122. Best Time to Buy and Sell Stock II greedy; array
- 136. Single Number hash table; bit manipulation
- 167. Two Sum II - Input array is sorted double index; binary search
- 179. Largest Number sort
- 200. Number of Islands dfs; bfs
- 209. Minimum Size Subarray Sum sliding window
- 215. Kth Largest Element in an Array sort
- 217. Contains Duplicate map
- 219. Contains Duplicate II map
- 283. Move Zeroes(solution1) sliding window
- 283. Move Zeroes(solution2) sliding window
- 303. Range Sum Query - Immutable
- 347. Top K Frequent Elements hash table; heap
- 349. Intersection of Two Arrays set
- 350. Intersection of Two Arrays II hash table
- 447. Number of Boomerangs hash table
- 454. 4Sum II hash table
- 674. Longest Continuous Increasing Subsequence
- 713. Subarray Product Less Than K sliding window array
- 717. 1-bit and 2-bit Characters
- 747. Largest Number At Least Twice of Others
- 3. Longest Substring Without Repeating Characters sliding window; hash table
- 14. Longest Common Prefix
- 17. Letter Combinations of a Phone Number tree
- 20. Valid Parentheses stack
- 28. Implement strStr() double index
- 58. Length of Last Word
- 67. Add Binary brute force
- 76. Minimum Window Substring sliding window
- 125. Valid Palindrome string; double index
- 165. Compare Version Numbers
- 344. Reverse String string; double index
- 345. Reverse Vowels of a String string; double index
- 438. Find All Anagrams in a String sliding window
- 557. Reverse Words in a String III
- 1021. Remove Outermost Parentheses stack
- 2. Add Two Numbers recursion; math
- 19. Remove Nth Node From End of List two pointers
- 21. Merge Two Sorted Lists
- 23. Merge k Sorted Lists heap
- 24. Swap Nodes in Pairs
- 25. Reverse Nodes in k-Group
- 61. Rotate List
- 82. Remove Duplicates from Sorted List II
- 83. Remove Duplicates from Sorted List
- 86. Partition List two pointers
- 92. Reverse Linked List II
- 148. Sort List sort
- 203. Remove Linked List Elements
- 206. Reverse Linked List
- 237. Delete Node in a Linked List
- 328. Odd Even Linked List
- 62. Unique Paths array
- 63. Unique Paths 2 array
- 64. Minimum Path Sum array
- 70. Climbing Stairs
- 120. Triangle array
- 198. House Robber
- 300. Longest Increasing Subsequence
- 304. Range Sum Query 2D - Immutable
- 343. Integer Break math
- 376. Wiggle Subsequence greedy; dynamic programming
- 416. Partition Equal Subset Sum 0-1 knapsack problem
- 435. Non-overlapping Intervals greedy; dynamic programming 0-1 knapsack problem
- 392. Is Subsequence
- 435. Non-overlapping Intervals greedy; dynamic programming
- 455. Assign Cookies
- 77. Combinations combine
- 79. Word Search array
- 94. Binary Tree Inorder Traversal binary tree; stack
- 100. Same Tree binary tree; dfs
- 101. Symmetric Tree binary tree; dfs; bfs;
- 102. Binary Tree Level Order Traversal binary tree; dfs
- 104. Maximum Depth of Binary Tree binary tree depth
- 107. Binary Tree Level Order Traversal II binary tree; bfs
- 111. Minimum Depth of Binary Tree binary tree; dfs
- 112. Path Sum binary tree; dfs
- 144. Binary Tree Preorder Traversal binary tree; pre-order traversal
- 208. Implement Trie (Prefix Tree) trie
- 226. Invert Binary Tree binary tree
- 211. Add and Search Word - Data structure design trie
- 235. Lowest Common Ancestor of a Binary Search Tree binary tree
- 236. Lowest Common Ancestor of a Binary Tree binary tree
- 257. Binary Tree Paths binary tree
- 307. Range Sum Query - Mutable segment tree
- 404. Sum of Left Leaves binary tree
- 437. Path Sum III binary tree
- 677. Map Sum Pairs trie
- 872. Leaf-Similar Trees binary tree
- 33. Search in Rotated Sorted Array array; binary search
- 34. Find First and Last Position of Element in Sorted Array array; binary search
- 35. Search Insert Position array; binary search
- 69. Sqrt(x) math; binary search
- 153. Find Minimum in Rotated Sorted Array
- 704. Binary Search