目录
【0】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 1 | Two Sum | 40.2% | Easy | |
| 2 | Add Two Numbers | 30.4% | Medium | |
| 3 | Longest Substring Without Repeating Characters | 26.1% | Medium | |
| 4 | Median of Two Sorted Arrays | 25.3% | Hard | |
| 5 | Longest Palindromic Substring | 26.4% | Medium | |
| 10 | Regular Expression Matching | 24.9% | Hard | |
| 11 | Container With Most Water | 42.1% | Medium | |
| 15 | 3Sum | 23.2% | Medium | |
| 17 | Letter Combinations of a Phone Number | 40.1% | Medium | |
| 19 | Remove Nth Node From End of List | 33.9% | Medium |
【1】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 20 | Valid Parentheses | 35.7% | Easy | |
| 21 | Merge Two Sorted Lists | 45.5% | Easy | |
| 22 | Generate Parentheses | 52.8% | Medium | |
| 23 | Merge k Sorted Lists | 32.6% | Hard | |
| 31 | Next Permutation | 30.0% | Medium | |
| 32 | Longest Valid Parentheses | 24.8% | Hard | |
| 33 | Search in Rotated Sorted Array | 32.6% | Medium | |
| 34 | Find First and Last Position of Element in Sorted Array | 32.8% | Medium | |
| 39 | Combination Sum | 46.3% | Medium | |
| 42 | Trapping Rain Water | 41.5% | Hard |
【2】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 46 | Permutations | 53.0% | Medium | |
| 48 | Rotate Image | 46.4% | Medium | |
| 49 | Group Anagrams | 44.3% | Medium | |
| 53 | Maximum Subarray | 42.6% | Easy | |
| 55 | Jump Game | 31.1% | Medium | |
| 56 | Merge Intervals | 34.6% | Medium | |
| 62 | Unique Paths | 46.1% | Medium | |
| 64 | Minimum Path Sum | 45.2% | Medium | |
| 70 | Climbing Stairs | 43.2% | Easy | |
| 72 | Edit Distance | 36.2% | Hard |
【3】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 75 | Sort Colors | 41.1% | Medium | |
| 76 | Minimum Window Substring | 29.6% | Hard | |
| 78 | Subsets | 50.5% | Medium | |
| 79 | Word Search | 30.2% | Medium | |
| 84 | Largest Rectangle in Histogram | 30.1% | Hard | |
| 85 | Maximal Rectangle | 32.2% | Hard | |
| 94 | Binary Tree Inorder Traversal | 54.7% | Medium | |
| 96 | Unique Binary Search Trees | 44.8% | Medium | |
| 98 | Validate Binary Search Tree | 25.1% | Medium | |
| 101 | Symmetric Tree | 42.5% | Easy |
【4】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 102 | Binary Tree Level Order Traversal | 46.7% | Medium | |
| 104 | Maximum Depth of Binary Tree | 58.9% | Easy | |
| 105 | Construct Binary Tree from Preorder and Inorder Traversal | 39.1% | Medium | |
| 114 | Flatten Binary Tree to Linked List | 40.8% | Medium | |
| 121 | Best Time to Buy and Sell Stock | 46.0% | Easy | |
| 124 | Binary Tree Maximum Path Sum | 29.1% | Hard | |
| 128 | Longest Consecutive Sequence | 40.7% | Hard | |
| 136 | Single Number | 58.7% | Easy | |
| 139 | Word Break | 34.1% | Medium | |
| 141 | Linked List Cycle | 35.5% | Easy |
【5】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 142 | Linked List Cycle II | 30.7% | Medium | |
| 146 | LRU Cache | 23.7% | Hard | |
| 148 | Sort List | 33.6% | Medium | |
| 152 | Maximum Product Subarray | 28.4% | Medium | |
| 155 | Min Stack | 35.3% | Easy | |
| 160 | Intersection of Two Linked Lists | 31.9% | Easy | |
| 169 | Majority Element | 51.2% | Easy | |
| 198 | House Robber | 40.7% | Easy | |
| 200 | Number of Islands | 40.0% | Medium | |
| 206 | Reverse Linked List | 52.3% | Easy |
【6】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 207 | Course Schedule | 36.4% | Medium | |
| 208 | Implement Trie (Prefix Tree) | 36.4% | Medium | |
| 215 | Kth Largest Element in an Array | 45.5% | Medium | |
| 221 | Maximal Square | 32.1% | Medium | |
| 226 | Invert Binary Tree | 56.8% | Easy | |
| 234 | Palindrome Linked List | 35.2% | Easy | |
| 236 | Lowest Common Ancestor of a Binary Tree | 35.0% | Medium | |
| 238 | Product of Array Except Self | 53.6% | Medium | |
| 239 | Sliding Window Maximum | 36.8% | Hard | |
| 240 | Search a 2D Matrix II | 40.1% | Medium |
【7】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 253 | Meeting Rooms II | 41.9% | Medium | |
| 279 | Perfect Squares | 40.4% | Medium | |
| 283 | Move Zeroes | 53.4% | Easy | |
| 287 | Find the Duplicate Number | 48.0% | Medium | |
| 297 | Serialize and Deserialize Binary Tree | 39.0% | Hard | |
| 300 | Longest Increasing Subsequence | 40.1% | Medium | |
| 301 | Remove Invalid Parentheses | 38.2% | Hard | |
| 309 | Best Time to Buy and Sell Stock with Cooldown | 43.4% | Medium | |
| 312 | Burst Balloons | 46.0% | Hard | |
| 322 | Coin Change | 28.8% | Medium |
【8】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 337 | House Robber III | 47.1% | Medium | |
| 338 | Counting Bits | 63.8% | Medium | |
| 347 | Top K Frequent Elements | 53.1% | Medium | |
| 394 | Decode String | 43.6% | Medium | |
| 406 | Queue Reconstruction by Height | 58.7% | Medium | |
| 416 | Partition Equal Subset Sum | 39.7% | Medium | |
| 437 | Path Sum III | 41.8% | Easy | |
| 438 | Find All Anagrams in a String | 36.1% | Easy | |
| 448 | Find All Numbers Disappeared in an Array | 52.6% | Easy | |
| 461 | Hamming Distance | 70.0% | Easy |
【9】
| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 494 | Target Sum | 44.8% | Medium | |
| 538 | Convert BST to Greater Tree | 49.8% | Easy | |
| 543 | Diameter of Binary Tree | 46.1% | Easy | |
| 560 | Subarray Sum Equals K | 41.5% | Medium | |
| 572 | Subtree of Another Tree | 41.1% | Easy | |
| 581 | Shortest Unsorted Continuous Subarray | 29.6% | Easy | |
| 617 | Merge Two Binary Trees | 69.0% | Easy | |
| 621 | Task Scheduler | 44.1% | Medium | |
| 647 | Palindromic Substrings | 55.5% | Medium | |
| 771 | Jewels and Stones | 82.6% | Easy |
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