| 611 | Valid Triangle Number | Medium |
| 621 | Task Scheduler | Medium |
| 628 | Maximum Product of Three Numbers | Easy |
| 632 | Smallest Range Covering Elements from K Lists | Hard |
| 645 | Set Mismatch | Easy |
| 646 | Maximum Length of Pair Chain | Medium |
| 658 | Find K Closest Elements | Medium |
| 692 | Top K Frequent Words | Medium |
| 710 | Random Pick with Blacklist | Hard |
| 719 | Find K-th Smallest Pair Distance | Hard |
| 720 | Longest Word in Dictionary | Medium |
| 726 | Number of Atoms | Hard |
| 747 | Largest Number At Least Twice of Others | Easy |
| 757 | Set Intersection Size At Least Two | Hard |
| 767 | Reorganize String | Medium |
| 768 | Max Chunks To Make Sorted II | Hard |
| 769 | Max Chunks To Make Sorted | Medium |
| 786 | K-th Smallest Prime Fraction | Medium |
| 791 | Custom Sort String | Medium |
| 792 | Number of Matching Subsequences | Medium |
| 825 | Friends Of Appropriate Ages | Medium |
| 826 | Most Profit Assigning Work | Medium |
| 846 | Hand of Straights | Medium |
| 853 | Car Fleet | Medium |
| 857 | Minimum Cost to Hire K Workers | Hard |
| 869 | Reordered Power of 2 | Medium |
| 870 | Advantage Shuffle | Medium |
| 881 | Boats to Save People | Medium |
| 888 | Fair Candy Swap | Easy |
| 891 | Sum of Subsequence Widths | Hard |