| Merge k Sorted Lists |
困难 |
| Top K Frequent Elements |
中等 |
| Design Twitter |
中等 |
| Find K Pairs with Smallest Sums |
中等 |
| Kth Smallest Element in a Sorted Matrix |
中等 |
| Trapping Rain Water II |
困难 |
| Sort Characters By Frequency |
中等 |
| IPO |
困难 |
| Split Array into Consecutive Subsequences |
中等 |
| Top K Frequent Words |
中等 |
| Find K-th Smallest Pair Distance |
困难 |
| Network Delay Time |
中等 |
| Reorganize String |
中等 |
| Swim in Rising Water |
困难 |
| K-th Smallest Prime Fraction |
困难 |
| Cheapest Flights Within K Stops |
中等 |
| Race Car |
困难 |
| Kth Largest Element in an Array |
中等 |
| The Skyline Problem |
困难 |
| Sliding Window Maximum |
困难 |
| Ugly Number II |
中等 |
| Super Ugly Number |
中等 |
| Minimum Cost to Hire K Workers |
困难 |
| Shortest Path to Get All Keys |
困难 |
| Kth Largest Element in a Stream |
简单 |
| Reachable Nodes In Subdivided Graph |
困难 |
| Find Median from Data Stream |
困难 |