| 33. Search in Rotated Sorted Array | | | Solve | Medium | | |
| 56. Merge Intervals | | | Solve | Medium | | |
| 62. Unique Paths | | | Solve | Medium | | |
| 79. Word Search | | | Solve | Medium | | |
| 138. Copy List with Random Pointer | | | Solve | Medium | | |
| 146. LRU Cache | | | Solve | Medium | | |
| 162. Find Peak Element | | | Solve | Medium | | |
| 200. Number of Islands | | | Solve | Medium | | |
| 208. Implement Trie (Prefix Tree) | | | Solve | Medium | | |
| 215. Kth Largest Element in an Array | | | Solve | Medium | | |
| 227. Basic Calculator II | | | Solve | Medium | | |
| 241. Different Ways to Add Parentheses | | | Solve | Medium | | |
| 253. Meeting Rooms II | | | Solve | Medium | | |
| 289. Game of Life | | | Solve | Medium | | |
| 310. Minimum Height Trees | | | Solve | Medium | | |
| 311. Sparse Matrix Multiplication | | | Solve | Medium | | |
| 351. Android Unlock Patterns | | | Solve | Medium | | |
| 377. Combination Sum IV | | | Solve | Medium | | |
| 394. Decode String | | | Solve | Medium | | |
| 399. Evaluate Division | | | Solve | Medium | | |
| 439. Ternary Expression Parser | | | Solve | Medium | | |
| 486. Predict the Winner | | | Solve | Medium | | |
| 490. The Maze | | | Solve | Medium | | |
| 787. Cheapest Flights Within K Stops | | | Solve | Medium | | |
| 934. Shortest Bridge | | | Solve | Medium | | |
| 935. Knight Dialer | | | Solve | Medium | | |
| 939. Minimum Area Rectangle | | | Solve | Medium | | |
| 974. Subarray Sums Divisible by K | | | Solve | Medium | | |
| 1027. Longest Arithmetic Subsequence | | | Solve | Medium | | |
| 1091. Shortest Path in Binary Matrix | | | Solve | Medium | | |
| 1161. Maximum Level Sum of a Binary Tree | | | Solve | Medium | | |
| 1249. Minimum Remove to Make Valid Parentheses | | | Solve | Medium | | |
| 1306. Jump Game III | | | Solve | Medium | | |
| 1441. Build an Array With Stack Operations | | | Solve | Medium | | |
| 1498. Number of Subsequences That Satisfy the Given Sum Condition | | | Solve | Medium | | |
| 1754. Largest Merge Of Two Strings | | | Solve | Medium | | |
| 1802. Maximum Value at a Given Index in a Bounded Array | | | Solve | Medium | | |
