| 292 | Nim Game | Easy |
| 295 | Find Median from Data Stream | Hard |
| 300 | Longest Increasing Subsequence | Medium |
| 303 | Range Sum Query - Immutable | Easy |
| 304 | Range Sum Query 2D - Immutable | Medium |
| 315 | Count of Smaller Numbers After Self | Hard |
| 316 | Remove Duplicate Letters | Hard |
| 319 | Bulb Switcher | Medium |
| 322 | Coin Change | Medium |
| 332 | Reconstruct Itinerary | Hard |
| 338 | Counting Bits | Easy |
| 341 | Flatten Nested List Iterator | Medium |
| 342 | Power of Four | Easy |
| 343 | Integer Break | Medium |
| 377 | Combination Sum IV | Medium |
| 380 | Insert Delete GetRandom O(1) | Medium |
| 381 | Insert Delete GetRandom O(1) - Duplicates allowed | Hard |
| 387 | First Unique Character in a String | Easy |
| 389 | Find the Difference | Easy |
| 392 | Is Subsequence | Easy |
| 401 | Binary Watch | Easy |
| 403 | Frog Jump | Hard |
| 415 | Add Strings | Easy |
| 445 | Add Two Numbers II | Medium |
| 454 | 4Sum II | Medium |
| 455 | Assign Cookies | Easy |
| 456 | 132 Pattern | Medium |
| 458 | Poor Pigs | Hard |
| 459 | Repeated Substring Pattern | Easy |
| 478 | Generate Random Point in a Circle | Medium |