- 22. Generate Parentheses string Medium
- 300. Longest Increasing Subsequence dp Medium
- 209. Minimum Size Subarray Sum Medium
- 263. Ugly Number Easy
- 264. Ugly Number II Medium
- 198 House Robber dp Easy
- 165. Compare Version Numbers string Easy
- 63. Unique Paths II Array Medium
- 231. Power of Two Bit Manipulation Easy