EBay
67 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 146. LRU Cache | Medium | 100% | TopicsHash TableLinked ListDesignDoubly-Linked List |
| 1909. Remove One Element to Make the Array Strictly Increasing | Easy | 97.7% | TopicsArray |
| 2544. Alternating Digit Sum | Easy | 92.4% | TopicsMath |
| 416. Partition Equal Subset Sum | Medium | 89.3% | TopicsArrayDynamic ProgrammingKnapsack Problem0-1 Knapsack |
| 572. Subtree of Another Tree | Easy | 89.3% | TopicsTreeDepth-First SearchString MatchingBinary TreeHash Function |
| Minimum Window Subsequence | Hard | 89.3% | TopicsStringDynamic ProgrammingSliding Window |
| 868. Binary Gap | Easy | 89.3% | TopicsBit Manipulation |
| Design Skiplist | Hard | 89.3% | TopicsLinked ListDesign |
| 1877. Minimize Maximum Pair Sum in Array | Medium | 89.3% | TopicsArrayTwo PointersGreedySorting |
| 1. Two Sum | Easy | 85.8% | TopicsArrayHash Table |
| 54. Spiral Matrix | Medium | 85.8% | TopicsArrayMatrixSimulation |
| 56. Merge Intervals | Medium | 85.8% | TopicsArraySortingQuicksort |
| 200. Number of Islands | Medium | 81.7% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 347. Top K Frequent Elements | Medium | 81.7% | TopicsArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect |
| Pow(x, n) | Medium | 76.9% | TopicsMathRecursion |
| 73. Set Matrix Zeroes | Medium | 76.9% | TopicsArrayHash TableMatrix |
| 493. Reverse Pairs | Hard | 76.9% | TopicsArrayBinary SearchDivide and ConquerBinary Indexed TreeSegment TreeMerge SortOrdered SetTreap |
| 5. Longest Palindromic Substring | Medium | 71.1% | TopicsTwo PointersStringDynamic ProgrammingManacher |
| 968. Binary Tree Cameras | Hard | 71.1% | TopicsDynamic ProgrammingTreeDepth-First SearchBinary TreeDP on Trees |
| 473. Matchsticks to Square | Medium | 71.1% | TopicsArrayDynamic ProgrammingBacktrackingBit ManipulationBitmask |
| 981. Time Based Key-Value Store | Medium | 71.1% | TopicsHash TableStringBinary SearchDesign |
| 905. Sort Array By Parity | Easy | 71.1% | TopicsArrayTwo PointersSorting |
| Maximal Square | Medium | 71.1% | TopicsArrayDynamic ProgrammingMatrix |
| 2232. Minimize Result by Adding Parentheses to Expression | Medium | 71.1% | TopicsStringEnumeration |
| 3. Longest Substring Without Repeating Characters | Medium | 63.5% | TopicsHash TableStringSliding Window |
