| 736 | https://leetcode.com/problems/parse-lisp-expression | Parse Lisp Expression | Hard | 53.5% | 87.5% |
| 1209 | https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii | Remove All Adjacent Duplicates in String II | Medium | 60.9% | 100.0% |
| 273 | https://leetcode.com/problems/integer-to-english-words | Integer to English Words | Hard | 34.8% | 62.5% |
| 680 | https://leetcode.com/problems/valid-palindrome-ii | Valid Palindrome II | Easy | 44.0% | 75.0% |
| 724 | https://leetcode.com/problems/find-pivot-index | Find Pivot Index | Easy | 62.1% | 62.5% |
| 34 | https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array | Find First and Last Position of Element in Sorted Array | Medium | 48.3% | 62.5% |