| # | Title | Acceptance | Difficulty | |
|---|---|---|---|---|
| 20 | Valid Parentheses | 37.2% | Easy | |
| 341 | Flatten Nested List Iterator | 49.1% | Medium | |
| 133 | Clone Graph | 28.2% | Medium | |
| 380 | Insert Delete GetRandom O(1) | 43.6% | Medium | |
| 57 | Insert Interval | 31.7% | Hard | |
| 635 | Design Log Storage System | 55.8% | Medium | |
| 56 | Merge Intervals | 36.5% | Medium | |
| 23 | Merge k Sorted Lists | 35.9% | Hard | |
| 76 | Minimum Window Substring | 31.8% | Hard | |
| 239 | Sliding Window Maximum | 39.2% | Hard | |
| 101 | Symmetric Tree | 44.3% | Easy | |
| 1041 | Robot Bounded In Circle | 44.8% | Medium | |
| 920 | Number of Music Playlists | 44.1% | Hard |