| Max Stack | Hard | 45.9% | 100.0% |
| All O`one Data Structure | Hard | 44.2% | 94.4% |
| Word Ladder | Hard | 44.9% | 79.1% |
| Serialize and Deserialize Binary Tree | Hard | 60.4% | 66.4% |
| Maximize Subarrays After Removing One Conflicting Pair | Hard | 64.7% | 65.1% |
| Minimum Window Substring | Hard | 47.0% | 64.8% |
| Kth Smallest Product of Two Sorted Arrays | Hard | 48.9% | 60.0% |
| Count Integers in Intervals | Hard | 35.7% | 60.0% |
| Valid Number | Hard | 22.6% | 60.0% |
| Longest Valid Parentheses | Hard | 38.1% | 59.2% |
| Closest Binary Search Tree Value II | Hard | 61.1% | 58.8% |
| Max Points on a Line | Hard | 30.3% | 58.8% |
| Merge k Sorted Lists | Hard | 58.9% | 53.4% |
| Text Justification | Hard | 50.5% | 51.8% |
| Insert Delete GetRandom O(1) - Duplicates allowed | Hard | 36.4% | 50.0% |
| Time to Cross a Bridge | Hard | 44.4% | 50.0% |
| Maximum Number of Non-overlapping Palindrome Substrings | Hard | 43.3% | 50.0% |
| Minimum Deletions to Make Array Divisible | Hard | 60.0% | 50.0% |
| Paint House II | Hard | 56.9% | 49.0% |
| Robot Room Cleaner | Hard | 77.9% | 40.9% |
| Word Ladder II | Hard | 27.5% | 40.5% |
| Largest Color Value in a Directed Graph | Hard | 57.3% | 32.0% |
| Number of Visible People in a Queue | Hard | 72.4% | 32.0% |
| Expression Add Operators | Hard | 42.8% | 32.0% |
| Maximum Profit in Job Scheduling | Hard | 54.6% | 29.6% |
| Median of Two Sorted Arrays | Hard | 46.0% | 27.8% |
