| 4 | https://leetcode.com/problems/median-of-two-sorted-arrays | Median of Two Sorted Arrays | Hard | 45.9% | 100.0% |
| 20 | https://leetcode.com/problems/valid-parentheses | Valid Parentheses | Easy | 43.7% | 100.0% |
| 22 | https://leetcode.com/problems/generate-parentheses | Generate Parentheses | Medium | 78.2% | 100.0% |
| 42 | https://leetcode.com/problems/trapping-rain-water | Trapping Rain Water | Hard | 66.8% | 100.0% |
| 52 | https://leetcode.com/problems/n-queens-ii | N-Queens II | Hard | 78.1% | 100.0% |
| 109 | https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree | Convert Sorted List to Binary Search Tree | Medium | 65.9% | 100.0% |
| 125 | https://leetcode.com/problems/valid-palindrome | Valid Palindrome | Easy | 52.8% | 100.0% |
| 146 | https://leetcode.com/problems/lru-cache | LRU Cache | Medium | 46.8% | 100.0% |
| 155 | https://leetcode.com/problems/min-stack | Min Stack | Medium | 57.7% | 100.0% |
| 168 | https://leetcode.com/problems/excel-sheet-column-title | Excel Sheet Column Title | Easy | 45.7% | 100.0% |
| 169 | https://leetcode.com/problems/majority-element | Majority Element | Easy | 66.1% | 100.0% |
| 200 | https://leetcode.com/problems/number-of-islands | Number of Islands | Medium | 63.8% | 100.0% |
| 206 | https://leetcode.com/problems/reverse-linked-list | Reverse Linked List | Easy | 80.3% | 100.0% |
| 207 | https://leetcode.com/problems/course-schedule | Course Schedule | Medium | 50.8% | 100.0% |
| 210 | https://leetcode.com/problems/course-schedule-ii | Course Schedule II | Medium | 55.0% | 100.0% |
| 229 | https://leetcode.com/problems/majority-element-ii | Majority Element II | Medium | 55.8% | 100.0% |
| 239 | https://leetcode.com/problems/sliding-window-maximum | Sliding Window Maximum | Hard | 48.4% | 100.0% |
| 251 | https://leetcode.com/problems/flatten-2d-vector | Flatten 2D Vector | Medium | 50.4% | 100.0% |
| 255 | https://leetcode.com/problems/verify-preorder-sequence-in-binary-search-tree | Verify Preorder Sequence in Binary Search Tree | Medium | 51.7% | 100.0% |
| 261 | https://leetcode.com/problems/graph-valid-tree | Graph Valid Tree | Medium | 49.8% | 100.0% |
| 317 | https://leetcode.com/problems/shortest-distance-from-all-buildings | Shortest Distance from All Buildings | Hard | 44.8% | 100.0% |