| Merge Intervals | Medium | 51.2% | 100.0% | ArraySorting |
| Minimum Changes To Make Alternating Binary String | Easy | 63.8% | 93.5% | String |
| Find Followers Count | Easy | 69.5% | 93.5% | Database |
| Best Time to Buy and Sell Stock | Easy | 56.4% | 90.9% | ArrayDynamic Programming |
| Number of Islands | Medium | 63.8% | 90.9% | ArrayDepth-First SearchBreadth-First Search+2 |
| Basic Calculator II | Medium | 46.7% | 90.9% | MathStringStack |
| Building H2O | Medium | 58.4% | 84.6% | Concurrency |
| Design Circular Queue | Medium | 54.0% | 84.6% | ArrayLinked ListDesign+1 |
| Reorganize String | Medium | 56.8% | 80.8% | Hash TableStringGreedy+3 |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 80.8% | Hash TableStringSliding Window |
| Trapping Rain Water | Hard | 66.8% | 80.8% | ArrayTwo PointersDynamic Programming+2 |
| Rectangle Area | Medium | 49.0% | 76.3% | MathGeometry |
| Valid Parentheses | Easy | 43.7% | 76.3% | StringStack |
| 3Sum | Medium | 38.6% | 70.8% | ArrayTwo PointersSorting |
| LRU Cache | Medium | 46.8% | 70.8% | Hash TableLinked ListDesign+1 |
| Letter Combinations of a Phone Number | Medium | 65.5% | 70.8% | Hash TableStringBacktracking |
| Two Sum | Easy | 57.1% | 70.8% | ArrayHash Table |
| Snakes and Ladders | Medium | 48.0% | 63.7% | ArrayBreadth-First SearchMatrix |
| Evaluate Division | Medium | 64.0% | 63.7% | ArrayStringDepth-First Search+4 |
| Top K Frequent Elements | Medium | 65.9% | 63.7% | ArrayHash TableDivide and Conquer+5 |
| Maximum Subarray | Medium | 53.0% | 63.7% | ArrayDivide and ConquerDynamic Programming |
| Word Ladder | Hard | 44.9% | 63.7% | Hash TableStringBreadth-First Search |
| Shortest Bridge | Medium | 59.3% | 63.7% | ArrayDepth-First SearchBreadth-First Search+1 |
| Design Memory Allocator | Medium | 49.7% | 53.7% | ArrayHash TableDesign+1 |
| Flatten Nested List Iterator | Medium | 65.6% | 53.7% | StackTreeDepth-First Search+3 |
| Container With Most Water | Medium | 59.6% | 53.7% | ArrayTwo PointersGreedy |
| Valid Anagram | Easy | 67.8% | 53.7% | Hash TableStringSorting |
| Design Tic-Tac-Toe | Medium | 58.7% | 53.7% | ArrayHash TableDesign+2 |
| First Missing Positive | Hard | 42.5% | 53.7% | ArrayHash Table |
| Rotate Image | Medium | 79.4% | 53.7% | ArrayMathMatrix |
| Longest Consecutive Sequence | Medium | 47.0% | 53.7% | ArrayHash TableUnion-Find |
| Course Schedule | Medium | 50.8% | 53.7% | Depth-First SearchBreadth-First SearchGraph Theory+1 |
| Happy Number | Easy | 59.3% | 53.7% | Hash TableMathTwo Pointers |
| Evaluate Reverse Polish Notation | Medium | 57.1% | 53.7% | ArrayMathStack |
| UTF-8 Validation | Medium | 46.1% | 53.7% | ArrayBit Manipulation |
| Design Parking System | Easy | 87.2% | 53.7% | DesignSimulationCounting |
| Word Ladder II | Hard | 27.5% | 53.7% | Hash TableStringBacktracking+1 |
| Find All Possible Recipes from Given Supplies | Medium | 56.8% | 53.7% | ArrayHash TableString+2 |
| Median of Two Sorted Arrays | Hard | 46.0% | 53.7% | ArrayBinary SearchDivide and Conquer |
| Is Subsequence | Easy | 48.9% | 53.7% | Two PointersStringDynamic Programming |
| Logger Rate Limiter | Easy | 76.8% | 53.7% | Hash TableDesignData Stream |