| 1 | https://leetcode.com/problems/two-sum | Two Sum | Easy | 57.1% | 100.0% |
| 3 | https://leetcode.com/problems/longest-substring-without-repeating-characters | Longest Substring Without Repeating Characters | Medium | 38.5% | 87.5% |
| 200 | https://leetcode.com/problems/number-of-islands | Number of Islands | Medium | 63.8% | 75.0% |
| 121 | https://leetcode.com/problems/best-time-to-buy-and-sell-stock | Best Time to Buy and Sell Stock | Easy | 56.4% | 87.5% |
| 125 | https://leetcode.com/problems/valid-palindrome | Valid Palindrome | Easy | 52.8% | 87.5% |
| 20 | https://leetcode.com/problems/valid-parentheses | Valid Parentheses | Easy | 43.7% | 75.0% |