| Subsets | Medium | 82.0% | 100.0% | ArrayBacktrackingBit Manipulation |
| Word Break | Medium | 49.1% | 100.0% | ArrayHash TableString+3 |
| LRU Cache | Medium | 46.8% | 100.0% | Hash TableLinked ListDesign+1 |
| Longest Substring with At Most K Distinct Characters | Medium | 49.9% | 100.0% | |
| Decode String | Medium | 62.2% | 100.0% | StringStackRecursion |
| LFU Cache | Hard | 48.6% | 100.0% | Hash TableLinked ListDesign+1 |
| Design In-Memory File System | Hard | 48.4% | 87.5% | |
| Range Module | Hard | 44.7% | 87.5% | DesignSegment TreeOrdered Set |
| Course Schedule | Medium | 50.8% | 87.5% | Depth-First SearchBreadth-First SearchGraph Theory+1 |
| Find Pivot Index | Easy | 62.1% | 87.5% | ArrayPrefix Sum |
| Split BST | Medium | 82.2% | 87.5% | |
| Regular Expression Matching | Hard | 30.4% | 75.0% | StringDynamic ProgrammingRecursion |
| Design Twitter | Medium | 44.2% | 75.0% | Hash TableLinked ListDesign+1 |
| Longest Duplicate Substring | Hard | 31.1% | 75.0% | StringBinary SearchSliding Window+3 |
| Sliding Window Maximum | Hard | 48.4% | 75.0% | ArrayQueueSliding Window+2 |
| Longest Repeating Substring | Medium | 63.4% | 75.0% | |
| Group Anagrams | Medium | 72.2% | 75.0% | ArrayHash TableString+1 |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 75.0% | Hash TableStringSliding Window |
| Shopping Offers | Medium | 52.2% | 75.0% | ArrayDynamic ProgrammingBacktracking+3 |
| Wildcard Matching | Hard | 31.3% | 75.0% | StringDynamic ProgrammingGreedy+1 |
| Find K Closest Elements | Medium | 49.4% | 75.0% | ArrayTwo PointersBinary Search+3 |
| Remove K Digits | Medium | 36.4% | 75.0% | StringStackGreedy+1 |
| Shortest Bridge | Medium | 59.3% | 75.0% | ArrayDepth-First SearchBreadth-First Search+1 |
| Largest Rectangle in Histogram | Hard | 49.3% | 75.0% | ArrayStackMonotonic Stack |
| Unique Paths | Medium | 66.5% | 62.5% | MathDynamic ProgrammingCombinatorics |
| Number of Islands | Medium | 63.8% | 62.5% | ArrayDepth-First SearchBreadth-First Search+2 |
| Single Element in a Sorted Array | Medium | 59.2% | 62.5% | ArrayBinary Search |
| Number of Distinct Islands | Medium | 62.7% | 62.5% | |
| Find Median from Data Stream | Hard | 54.2% | 62.5% | Two PointersDesignSorting+2 |
| Design Hit Counter | Medium | 69.6% | 62.5% | |
| Kth Largest Element in an Array | Medium | 68.8% | 62.5% | ArrayDivide and ConquerSorting+2 |
| Snapshot Array | Medium | 36.7% | 62.5% | ArrayHash TableBinary Search+1 |
| Alien Dictionary | Hard | 37.1% | 62.5% | |
| Palindrome Partitioning | Medium | 73.7% | 62.5% | StringDynamic ProgrammingBacktracking |
| Basic Calculator II | Medium | 46.6% | 50.0% | MathStringStack |
| Cheapest Flights Within K Stops | Medium | 41.4% | 50.0% | Dynamic ProgrammingDepth-First SearchBreadth-First Search+3 |
| Increasing Triplet Subsequence | Medium | 39.2% | 50.0% | ArrayGreedy |
| Open the Lock | Medium | 61.1% | 50.0% | ArrayHash TableString+1 |
| Split Strings by Separator | Easy | 75.9% | 50.0% | ArrayString |
| Distinct Subsequences | Hard | 51.5% | 50.0% | StringDynamic Programming |
| Reorganize String | Medium | 56.8% | 50.0% | Hash TableStringGreedy+3 |
| Buildings With an Ocean View | Medium | 80.9% | 50.0% | |
| Basic Calculator | Hard | 46.5% | 50.0% | MathStringStack+1 |
| Largest Positive Integer That Exists With Its Negative | Easy | 74.5% | 50.0% | ArrayHash TableTwo Pointers+1 |
| Insert Delete GetRandom O(1) | Medium | 55.3% | 50.0% | ArrayHash TableMath+2 |
| Maximum Subarray | Medium | 53.0% | 50.0% | ArrayDivide and ConquerDynamic Programming |
| Basic Calculator III | Hard | 53.1% | 50.0% | |
| Merge k Sorted Lists | Hard | 58.8% | 50.0% | Linked ListDivide and ConquerHeap (Priority Queue)+1 |
| Container With Most Water | Medium | 59.5% | 50.0% | ArrayTwo PointersGreedy |
| Task Scheduler | Medium | 62.6% | 50.0% | ArrayHash TableGreedy+3 |
| Maximum Good Subarray Sum | Medium | 21.4% | 50.0% | ArrayHash TablePrefix Sum |
| Random Pick with Weight | Medium | 48.9% | 50.0% | ArrayMathBinary Search+2 |
| Merge Intervals | Medium | 51.1% | 50.0% | ArraySorting |