| 219 | Contains Duplicate II | Easy |
| 220 | Contains Duplicate III | Medium |
| 228 | Summary Ranges | Easy |
| 229 | Majority Element II | Medium |
| 238 | Product of Array Except Self | Medium |
| 239 | Sliding Window Maximum | Hard |
| 260 | Single Number III | Medium |
| 268 | Missing Number | Easy |
| 274 | H-Index | Medium |
| 275 | H-Index II | Medium |
| 283 | Move Zeroes | Easy |
| 284 | Peeking Iterator | Medium |
| 287 | Find the Duplicate Number | Medium |
| 289 | Game of Life | Medium |
| 300 | Longest Increasing Subsequence | Medium |
| 303 | Range Sum Query - Immutable | Easy |
| 304 | Range Sum Query 2D - Immutable | Medium |
| 307 | Range Sum Query - Mutable | Medium |
| 309 | Best Time to Buy and Sell Stock with Cooldown | Medium |
| 312 | Burst Balloons | Hard |
| 313 | Super Ugly Number | Medium |
| 315 | Count of Smaller Numbers After Self | Hard |
| 318 | Maximum Product of Word Lengths | Medium |
| 324 | Wiggle Sort II | Medium |
| 329 | Longest Increasing Path in a Matrix | Hard |
| 330 | Patching Array | Hard |
| 334 | Increasing Triplet Subsequence | Medium |
| 335 | Self Crossing | Hard |
| 336 | Palindrome Pairs | Hard |
| 347 | Top K Frequent Elements | Medium |