| 5. Longest Palindromic Substring | | | Solve | Medium | | |
| 22. Generate Parentheses | | | Solve | Medium | | |
| 45. Jump Game II | | | Solve | Medium | | |
| 53. Maximum Subarray | | | Solve | Medium | | |
| 55. Jump Game | | | Solve | Medium | | |
| 62. Unique Paths | | | Solve | Medium | | |
| 63. Unique Paths II | | | Solve | Medium | | |
| 64. Minimum Path Sum | | | Solve | Medium | | |
| 72. Edit Distance | | | Solve | Medium | | |
| 91. Decode Ways | | | Solve | Medium | | |
| 95. Unique Binary Search Trees II | | | Solve | Medium | | |
| 96. Unique Binary Search Trees | | | Solve | Medium | | |
| 97. Interleaving String | | | Solve | Medium | | |
| 120. Triangle | | | Solve | Medium | | |
| 122. Best Time to Buy and Sell Stock II | | | Solve | Medium | | |
| 131. Palindrome Partitioning | | | Solve | Medium | | |
| 139. Word Break | | | Solve | Medium | | |
| 152. Maximum Product Subarray | | | Solve | Medium | | |
| 198. House Robber | | | Solve | Medium | | |
| 213. House Robber II | | | Solve | Medium | | |
| 221. Maximal Square | | | Solve | Medium | | |
| 241. Different Ways to Add Parentheses | | | Solve | Medium | | |
| 256. Paint House | | | Solve | Medium | | |
| 264. Ugly Number II | | | Solve | Medium | | |
| 276. Paint Fence | | | Solve | Medium | | |
| 279. Perfect Squares | | | Solve | Medium | | |
| 294. Flip Game II | | | Solve | Medium | | |
| 300. Longest Increasing Subsequence | | | Solve | Medium | | |
| 309. Best Time to Buy and Sell Stock with Cooldown | | | Solve | Medium | | |
| 313. Super Ugly Number | | | Solve | Medium | | |
| 322. Coin Change | | | Solve | Medium | | |
| 333. Largest BST Subtree | | | Solve | Medium | | |
| 337. House Robber III | | | Solve | Medium | | |
| 343. Integer Break | | | Solve | Medium | | |
| 351. Android Unlock Patterns | | | Solve | Medium | | |
| 357. Count Numbers with Unique Digits | | | Solve | Medium | | |
| 361. Bomb Enemy | | | Solve | Medium | | |
| 368. Largest Divisible Subset | | | Solve | Medium | | |
| 375. Guess Number Higher or Lower II | | | Solve | Medium | | |
| 376. Wiggle Subsequence | | | Solve | Medium | | |
| 377. Combination Sum IV | | | Solve | Medium | | |
| 396. Rotate Function | | | Solve | Medium | | |
| 397. Integer Replacement | | | Solve | Medium | | |
| 413. Arithmetic Slices | | | Solve | Medium | | |
| 416. Partition Equal Subset Sum | | | Solve | Medium | | |
| 418. Sentence Screen Fitting | | | Solve | Medium | | |
| 435. Non-overlapping Intervals | | | Solve | Medium | | |
| 464. Can I Win | | | Solve | Medium | | |
| 467. Unique Substrings in Wraparound String | | | Solve | Medium | | |
| 473. Matchsticks to Square | | | Solve | Medium | | |