| 361. Bomb Enemy | | | Solve | Medium | | |
| 362. Design Hit Counter | | | Solve | Medium | | |
| 378. Kth Smallest Element in a Sorted Matrix | | | Solve | Medium | | |
| 380. Insert Delete GetRandom O(1) | | | Solve | Medium | | |
| 384. Shuffle an Array | | | Solve | Medium | | |
| 386. Lexicographical Numbers | | | Solve | Medium | | |
| 394. Decode String | | | Solve | Medium | | |
| 399. Evaluate Division | | | Solve | Medium | | |
| 417. Pacific Atlantic Water Flow | | | Solve | Medium | | |
| 424. Longest Repeating Character Replacement | | | Solve | Medium | | |
| 427. Construct Quad Tree | | | Solve | Medium | | |
| 438. Find All Anagrams in a String | | | Solve | Medium | | |
| 445. Add Two Numbers II | | | Solve | Medium | | |
| 518. Coin Change II | | | Solve | Medium | | |
| 528. Random Pick with Weight | | | Solve | Medium | | |
| 529. Minesweeper | | | Solve | Medium | | |
| 532. K-diff Pairs in an Array | | | Solve | Medium | | |
| 542. 01 Matrix | | | Solve | Medium | | |
| 547. Number of Provinces | | | Solve | Medium | | |
| 570. Managers with at Least 5 Direct Reports | | | Solve | Medium | | |
| 621. Task Scheduler | | | Solve | Medium | | |
| 626. Exchange Seats | | | Solve | Medium | | |
| 646. Maximum Length of Pair Chain | | | Solve | Medium | | |
| 658. Find K Closest Elements | | | Solve | Medium | | |
| 692. Top K Frequent Words | | | Solve | Medium | | |
| 722. Remove Comments | | | Solve | Medium | | |
| 725. Split Linked List in Parts | | | Solve | Medium | | |
| 729. My Calendar I | | | Solve | Medium | | |
| 731. My Calendar II | | | Solve | Medium | | |
| 739. Daily Temperatures | | | Solve | Medium | | |
| 752. Open the Lock | | | Solve | Medium | | |
| 764. Largest Plus Sign | | | Solve | Medium | | |
| 767. Reorganize String | | | Solve | Medium | | |
| 785. Is Graph Bipartite? | | | Solve | Medium | | |
| 787. Cheapest Flights Within K Stops | | | Solve | Medium | | |
| 799. Champagne Tower | | | Solve | Medium | | |
| 851. Loud and Rich | | | Solve | Medium | | |
| 852. Peak Index in a Mountain Array | | | Solve | Medium | | |
| 855. Exam Room | | | Solve | Medium | | |
| 863. All Nodes Distance K in Binary Tree | | | Solve | Medium | | |
| 881. Boats to Save People | | | Solve | Medium | | |
| 886. Possible Bipartition | | | Solve | Medium | | |
| 909. Snakes and Ladders | | | Solve | Medium | | |
| 918. Maximum Sum Circular Subarray | | | Solve | Medium | | |
| 930. Binary Subarrays With Sum | | | Solve | Medium | | |
| 934. Shortest Bridge | | | Solve | Medium | | |
| 959. Regions Cut By Slashes | | | Solve | Medium | | |
| 986. Interval List Intersections | | | Solve | Medium | | |
| 1011. Capacity To Ship Packages Within D Days | | | Solve | Medium | | |
| 1039. Minimum Score Triangulation of Polygon | | | Solve | Medium | | |
