Walmart Labs
135 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 3. Longest Substring Without Repeating Characters | Medium | 100% | TopicsHash TableStringSliding Window |
| 200. Number of Islands | Medium | 96.9% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 20. Valid Parentheses | Easy | 95.2% | TopicsStringStackBracket Sequences |
| 22. Generate Parentheses | Medium | 93.4% | TopicsStringDynamic ProgrammingBacktrackingBracket Sequences |
| 42. Trapping Rain Water | Hard | 93.4% | TopicsArrayTwo PointersDynamic ProgrammingStackMonotonic Stack |
| 56. Merge Intervals | Medium | 93.4% | TopicsArraySortingQuicksort |
| 146. LRU Cache | Medium | 93.4% | TopicsHash TableLinked ListDesignDoubly-Linked List |
| 1. Two Sum | Easy | 87% | TopicsArrayHash Table |
| 49. Group Anagrams | Medium | 84.5% | TopicsArrayHash TableStringSorting |
| 33. Search in Rotated Sorted Array | Medium | 81.7% | TopicsArrayBinary Search |
| 139. Word Break | Medium | 81.7% | TopicsArrayHash TableStringDynamic ProgrammingTrieMemoizationBrute-Force Search |
| 2406. Divide Intervals Into Minimum Number of Groups | Medium | 81.7% | TopicsArrayTwo PointersGreedySortingHeap (Priority Queue)Prefix Sum |
| 876. Middle of the Linked List | Easy | 81.7% | TopicsLinked ListTwo Pointers |
| 740. Delete and Earn | Medium | 81.7% | TopicsArrayHash TableDynamic Programming |
| 11. Container With Most Water | Medium | 78.6% | TopicsArrayTwo PointersGreedy |
| 3Sum | Medium | 78.6% | TopicsArrayTwo PointersSorting |
| 1977. Number of Ways to Separate Numbers | Hard | 78.6% | TopicsStringDynamic ProgrammingPrefix Sum |
| The Winner University | Easy | 78.6% | TopicsDatabase |
| 2179. Count Good Triplets in an Array | Hard | 78.6% | TopicsArrayBinary SearchDivide and ConquerBinary Indexed TreeSegment TreeMerge SortOrdered Set |
| 2449. Minimum Number of Operations to Make Arrays Similar | Hard | 78.6% | TopicsArrayGreedySorting |
| 2541. Minimum Operations to Make Array Equal II | Medium | 78.6% | TopicsArrayMathGreedy |
| 2071. Maximum Number of Tasks You Can Assign | Hard | 78.6% | TopicsArrayTwo PointersBinary SearchGreedyQueueSortingMonotonic Queue |
| 3005. Count Elements With Maximum Frequency | Easy | 78.6% | TopicsArrayHash TableCounting |
| 3090. Maximum Length Substring With Two Occurrences | Easy | 78.6% | TopicsHash TableStringSliding Window |
| 1238. Circular Permutation in Binary Representation | Medium | 78.6% | TopicsMathBacktrackingBit Manipulation |
