| 1 | Two Sum | JavaScript·TypeScript | Easy |
| 2 | Add Two Numbers | JavaScript | Medium |
| 3 | Longest Substring Without Repeating Characters | JavaScript | Medium |
| 4 | Median of Two Sorted Arrays | JavaScript | Hard |
| 5 | Longest Palindromic Substring | JavaScript | Medium |
| 6 | ZigZag Conversion | JavaScript | Medium |
| 7 | Reverse Integer | JavaScript | Easy |
| 8 | String to Integer (atoi) | JavaScript | Medium |
| 11 | Container With Most Water | JavaScript | Medium |
| 13 | Roman to Integer | JavaScript | Easy |
| 14 | Longest Common Prefix | JavaScript | Easy |
| 15 | 3Sum | JavaScript | Medium |
| 16 | 3Sum Closest | JavaScript | Medium |
| 17 | Letter Combinations of a Phone Number | JavaScript | Medium |
| 18 | 4sum | TypeScript | Medium |
| 19 | Remove Nth Node From End of List | JavaScript | Medium |
| 20 | valid-parentheses | TypeScript | Easy |
| 22 | Generate Parentheses | JavaScript | Medium |
| 24 | swap-nodes-in-pairs | TypeScript | Medium |
| 26 | Remove Duplicates from Sorted Array | JavaScript | Easy |
| 27 | Remove Element | JavaScript | Easy |
| 28 | Implement strStr() | JavaScript | Easy |
| 29 | Divide Two Integers | JavaScript | Medium |
| 31 | next-permutation | TypeScript | Medium |
| 33 | Search in Rotated Sorted Array | JavaScript | Medium |
| 34 | Search for a Range | JavaScript | Medium |
| 35 | Search Insert Position | JavaScript | Easy |
| 38 | count-and-say | TypeScript | Medium |
| 39 | Combination Sum | JavaScript | Medium |
| 40 | Combination Sum II | JavaScript | Medium |
| 41 | First Missing Positive | JavaScript | Hard |
| 42 | Trapping Rain Water | JavaScript | Hard |
| 43 | Multiply Strings | JavaScript | Medium |
| 45 | Jump Game II | JavaScript | Hard |
| 46 | Permutations | JavaScript | Medium |
| 47 | permutations-ii | TypeScript | Medium |
| 48 | Rotate Image | JavaScript | Medium |
| 49 | Group Anagrams | JavaScript | Medium |
| 50 | powx-n | TypeScript | Medium |
| 53 | Maximum Subarray | JavaScript ·TypeScript | Easy |
| 54 | Spiral Matrix | JavaScript | Medium |
| 55 | Jump Game* | JavaScript | Medium |
| 56 | Merge Intervals | JavaScript | Medium |
| 57 | Insert Interval | JavaScript | Hard |
| 62 | Unique Paths | JavaScript | Medium |
| 63 | Unique Paths ii | JavaScript | Medium |
| 64 | minimum-path-sum | TypeScript | Medium |
| 66 | Plus One | JavaScript | Easy |
| 69 | Sqrt(x) | JavaScript | Easy |
| 70 | climbing-stairs | TypeScript | Easy |
| 71 | Simplify Path | JavaScript | Medium |
| 73 | Set Matrix Zeroes | JavaScript | Medium |
| 75 | Sort Colors | JavaScript | Medium |
| 77 | combinations | TypeScript | Medium |
| 80 | Remove Duplicates from Sorted Array II | JavaScript | Medium |
| 81 | Search in Rotated Sorted Array II | JavaScript | Medium |
| 88 | Merge Sorted Array | JavaScript | Medium |
| 91 | Decode Ways | JavaScript | Medium |
| 93 | Restore IP Addresses | JavaScript | Medium |
| 94 | Binary Tree Inorder Traversal | TypeScript | Easy |
| 95 | unique-binary-search-trees-ii | TypeScript | Medium |
| 96 | unique-binary-search-trees | TypeScript | Medium |
| 97 | interleaving-string | TypeScript | Medium |
| 98 | Validate Binary Search Tree | JavaScript | Medium |
| 99 | recover-binary-search-tree | TypeScript | Medium |
| 100 | Same Tree | JavaScript | Easy |
| 101 | Symmetric Tree | JavaScript | Easy |
| 102 | Binary Tree Level Order Traversal | JavaScript | Medium |
| 103 | binary-tree-zigzag-level-order-traversal | TypeScript | Medium |
| 104 | Maximum Depth of Binary Tree | JavaScript | Easy |
| 107 | Binary Tree Level Order Traversal II | JavaScript | Easy |
| 108 | Convert Sorted Array to Binary Search Tree | JavaScript | Easy |
| 110 | balanced-binary-tree | TypeScript | Easy |
| 111 | Minimum Depth of Binary Tree | JavaScript ·TypeScript | Easy |
| 114 | flatten-binary-tree-to-linked-list | TypeScript | Medium |
| 116 | populating-next-right-pointers-in-each-node | TypeScript | Medium |
| 120 | Triangle | JavaScript | Medium |
| 121 | Best Time to Buy and Sell Stock | JavaScript ·TypeScript | Easy |
| 122 | Best Time to Buy and Sell Stock II | JavaScript | Easy |
| 123 | Best Time to Buy and Sell Stock III* | JavaScript | Hard |
| 127 | Word Ladder | JavaScript | Medium |
| 128 | Longest Consecutive Sequence | JavaScript | Medium |
| 129 | sum-root-to-leaf-numbers | TypeScript | Medium |
| 130 | Surrounded Regions | JavaScript | Medium |
| 131 | palindrome-partitioning | TypeScript | Medium |
| 133 | Clone Graph | JavaScript | Medium |
| 134 | Gas Station | JavaScript ·TypeScript | Medium |
| 135 | Candy | JavaScript | Hard |
| 136 | Single Number | JavaScript | Easy |
| 137 | Single Number II | JavaScript | Medium |
| 139 | word-break | TypeScript | Medium |
| 143 | reorder-list | TypeScript | Medium |
| 147 | insertion-sort-list | TypeScript | Medium |
| 148 | sort-list | TypeScript | Medium |
| 151 | Reverse Words in a String | JavaScript | Medium |
| 152 | Maximum Product Subarray | JavaScript | Medium |
| 153 | Find Minimum in Rotated Sorted Array | JavaScript | Medium |
| 154 | Find Minimum in Rotated Sorted Array II | JavaScript | Medium |
| 162 | Find Peak Element | JavaScript | Medium |
| 164 | Maximum Gap | JavaScript | Hard |
| 165 | Compare Version Numbers | JavaScript | Medium |
| 166 | fraction-to-recurring-decimal | TypeScript | Medium |
| 169 | Majority Element | JavaScript | Easy |
| 175 | Combine Two Tables | SQL | Easy |
| 176 | Second Highest Salary | SQL | Easy |
| 177 | Nth Highest Salary | SQL | Medium |
| 179 | largest-number | TypeScript | Medium |
| 181 | Employees Earning More Than Their Managers | SQL | Easy |
| 182 | Duplicate Emails | SQL | Easy |
| 183 | Customers Who Never Order | SQL | Easy |
| 184 | Department Highest Salary | SQL | Medium |
| 188 | Best Time to Buy and Sell Stock IV | JavaScript | Hard |
| 189 | Rotate Array | JavaScript | Easy |
| 190 | Reverse Bits | JavaScript | Easy |
| 196 | Delete Duplicate Emails | SQL | Easy |
| 197 | Rising Temperature | SQL | Easy |
| 198 | house-robber | TypeScript | Medium |
| 203 | remove-linked-list-elements | TypeScript | Easy |
| 206 | Reverse Linked List | JavaScript | Easy |
| 207 | Course Schedule | JavaScript | Medium |
| 209 | Minimum Size Subarray Sum | JavaScript | Medium |
| 210 | Course Schedule II | JavaScript | Medium |
| 213 | house-robber-ii | TypeScript | Medium |
| 215 | Kth Largest Element in an Array | JavaScript | Medium |
| 217 | Contains Duplicate | JavaScript ·TypeScript | Easy |
| 219 | Contains Duplicate II | JavaScript | Easy |
| 220 | Contains Duplicate III | JavaScript ·TypeScript | Medium |
| 228 | Summary Ranges | JavaScript | Medium |
| 230 | kth-smallest-element-in-a-bst | TypeScript | Medium |
| 238 | Product of Array Except Self | JavaScript | Medium |
| 239 | Sliding Window Maximum | JavaScript | Hard |
| 240 | Search a 2D Matrix II | JavaScript ·TypeScript | Medium |
| 274 | H-Index | JavaScript | Medium |
| 275 | H-Index II | JavaScript | Medium |
| 278 | First Bad Version | JavaScript | Easy |
| 283 | Move Zeroes | JavaScript | Easy |
| 287 | Find the Duplicate Number | JavaScript | Medium |
| 289 | Game of Life | JavaScript | Medium |
| 295 | Find Median from Data Stream | JavaScript | Hard |
| 299 | Bulls and Cows | JavaScript | Medium |
| 300 | Longest Increasing Subsequence | JavaScript | Medium |
| 307 | Range Sum Query - Mutable | JavaScript | Medium |
| 309 | Best Time to Buy and Sell Stock with Cooldown | JavaScript | Medium |
| 310 | Minimum Height Trees | JavaScript | Medium |
| 315 | Count of Smaller Numbers After Self* | JavaScript | Hard |
| 316 | remove-duplicate-letters | TypeScript | Medium |
| 322 | Coin Change | JavaScript | Medium |
| 327 | Count of Range Sum | JavaScript | Hard |
| 334 | Increasing Triplet Subsequence | JavaScript ·TypeScript | Medium |
| 340 | Longest Substring with At Most K Distinct Characters | JavaScript | Hard |
| 342 | Power of Four | JavaScript | Easy |
| 344 | Reverse String | JavaScript | Easy |
| 349 | Intersection of Two Arrays | JavaScript | Easy |
| 350 | Intersection of Two Arrays ii | JavaScript | Easy |
| 371 | Sum of Two Integers | JavaScript | Easy |
| 374 | Guess Number Higher or Lower | JavaScript | Easy |
| 376 | Wiggle Subsequence | JavaScript ·TypeScript | Medium |
| 384 | Shuffle an Array | JavaScript | Medium |
| 395 | Longest Substring with At Least K Repeating Characters | JavaScript | Medium |
| 404 | Sum of Left Leaves | JavaScript | Easy |
| 406 | queue-reconstruction-by-height | TypeScript | Medium |
| 413 | Arithmetic Slices | JavaScript | Medium |
| 416 | Partition Equal Subset Sum | JavaScript | Medium |
| 424 | Longest Repeating Character Replacement | JavaScript | Medium |
| 434 | Number of Segments in a String | JavaScript | Easy |
| 486 | Predict the Winner | JavaScript | Medium |
| 494 | Target Sum | JavaScript | Medium |
| 516 | Longest Palindromic Subsequence | JavaScript | Medium |
| 523 | Continuous Subarray Sum | JavaScript | Medium |
| 539 | Minimum Time Difference | JavaScript | Medium |
| 687 | Longest Univalue Path | JavaScript | Easy |
| 779 | K-th Symbol in Grammar | JavaScript | Medium |
| NO | NAME | TypeScript | Easy |