Coupang
48 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Design Hit Counter | Medium | 68.4% | TopicsArrayBinary SearchDesignQueueData Stream |
| 1146. Snapshot Array | Medium | 68.4% | TopicsArrayHash TableBinary SearchDesignPersistent Data Structure |
| Alien Dictionary | Hard | 68.4% | TopicsArrayStringDepth-First SearchBreadth-First SearchGraph TheoryTopological SortDirected Acyclic Graph |
| 131. Palindrome Partitioning | Medium | 68.4% | TopicsStringDynamic ProgrammingBacktracking |
| 3026. Maximum Good Subarray Sum | Medium | 68.4% | TopicsArrayHash TablePrefix Sum |
| 10. Regular Expression Matching | Hard | 57.9% | TopicsStringDynamic ProgrammingRecursion |
| 200. Number of Islands | Medium | 57.9% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 355. Design Twitter | Medium | 57.9% | TopicsHash TableLinked ListDesignHeap (Priority Queue) |
| 540. Single Element in a Sorted Array | Medium | 57.9% | TopicsArrayBinary Search |
| 752. Open the Lock | Medium | 57.9% | TopicsArrayHash TableStringBreadth-First SearchBidirectional Search |
| 2788. Split Strings by Separator | Easy | 57.9% | TopicsArrayString |
| 115. Distinct Subsequences | Hard | 57.9% | TopicsStringDynamic Programming |
| 215. Kth Largest Element in an Array | Medium | 57.9% | TopicsArrayDivide and ConquerSortingHeap (Priority Queue)Quickselect |
| 2441. Largest Positive Integer That Exists With Its Negative | Easy | 57.9% | TopicsArrayHash TableTwo PointersSorting |
| Insert Delete GetRandom O(1) | Medium | 57.9% | TopicsArrayHash TableMathDesignRandomized |
| 53. Maximum Subarray | Medium | 57.9% | TopicsArrayDivide and ConquerDynamic Programming |
| Basic Calculator III | Hard | 57.9% | TopicsMathStringStackRecursion |
| 23. Merge k Sorted Lists | Hard | 57.9% | TopicsLinked ListDivide and ConquerHeap (Priority Queue)Merge SortTournament Sort |
| 621. Task Scheduler | Medium | 57.9% | TopicsArrayHash TableGreedySortingHeap (Priority Queue)Counting |
| Random Pick with Weight | Medium | 57.9% | TopicsArrayMathBinary SearchPrefix SumRandomized |
| 3Sum | Medium | 57.9% | TopicsArrayTwo PointersSorting |
| 875. Koko Eating Bananas | Medium | 57.9% | TopicsArrayBinary Search |
| 2861. Maximum Number of Alloys | Medium | 57.9% | TopicsArrayBinary Search |
