2324 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Number of Provinces | Medium | 40.4% | TopicsDepth-First SearchBreadth-First SearchUnion-FindGraph Theory |
| 605. Can Place Flowers | Easy | 40.4% | TopicsArrayGreedy |
| 777. Swap Adjacent in LR String | Medium | 40.4% | TopicsTwo PointersString |
| Reverse Linked List II | Medium | 40% | TopicsLinked List |
| Single Number II | Medium | 40% | TopicsArrayBit Manipulation |
| Find Minimum in Rotated Sorted Array | Medium | 40% | TopicsArrayBinary Search |
| Largest Number | Medium | 40% | TopicsArrayStringGreedySorting |
| Odd Even Linked List | Medium | 40% | TopicsLinked List |
| Range Module | Hard | 40% | TopicsDesignSegment TreeOrdered Set |
| 133. Clone Graph | Medium | 39.6% | TopicsHash TableDepth-First SearchBreadth-First SearchGraph Theory |
| 796. Rotate String | Easy | 39.6% | TopicsStringString Matching |
| 104. Maximum Depth of Binary Tree | Easy | 39.6% | TopicsTreeDepth-First SearchBreadth-First SearchBinary Tree |
| 383. Ransom Note | Easy | 39.6% | TopicsHash TableStringCounting |
| 412. Fizz Buzz | Easy | 39.6% | TopicsMathStringSimulation |
| 939. Minimum Area Rectangle | Medium | 39.6% | TopicsArrayHash TableMathGeometrySorting |
| 1207. Unique Number of Occurrences | Easy | 39.6% | TopicsArrayHash Table |
| 1482. Minimum Number of Days to Make m Bouquets | Medium | 39.6% | TopicsArrayBinary Search |
| 1922. Count Good Numbers | Medium | 39.2% | TopicsMathRecursion |
| 3356. Zero Array Transformation II | Medium | 39.2% | TopicsArrayTwo PointersBinary SearchPrefix Sum |
| 24 Game | Hard | 38.8% | TopicsArrayMathBacktracking |
| 1143. Longest Common Subsequence | Medium | 38.8% | TopicsStringDynamic ProgrammingLongest Common Subsequence |
| 134. Gas Station | Medium | 38.8% | TopicsArrayGreedy |
| Perfect Squares | Medium | 38.8% | TopicsMathDynamic ProgrammingBreadth-First SearchKnapsack ProblemComplete Knapsack |
| 392. Is Subsequence | Easy | 38.8% | TopicsTwo PointersStringDynamic Programming |
| 567. Permutation in String | Medium | 38.8% | TopicsHash TableTwo PointersStringSliding Window |
