Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 706 | Intervals Between Identical Elements | Medium | ArrayHash TablePrefix Sum |
| 707 | Invalid Transactions | Medium | ArrayHash TableString |
| 708 | Inverse Coin Change | Medium | ArrayDynamic Programming |
| 709 | IPO | Hard | ArrayGreedySorting |
| 710 | Island Perimeter | Easy | ArrayDepth-First SearchBreadth-First Search |
| 711 | Jump Game | Medium | ArrayDynamic ProgrammingGreedy |
| 712 | Jump Game II | Medium | ArrayDynamic ProgrammingGreedy |
| 713 | Jump Game III | Medium | ArrayDepth-First SearchBreadth-First Search |
| 714 | Jump Game IV | Hard | ArrayHash TableBreadth-First Search |
| 715 | Jump Game V | Hard | ArrayDynamic ProgrammingSorting |
| 716 | Jump Game VI | Medium | ArrayDynamic ProgrammingQueue |
| 717 | Jump Game VIII | Medium | ArrayDynamic ProgrammingStack |
| 718 | K Closest Points to Origin | Medium | ArrayMathDivide and Conquer |
| 719 | K-Concatenation Maximum Sum | Medium | ArrayDynamic Programming |
| 720 | K-diff Pairs in an Array | Medium | ArrayHash TableTwo Pointers |
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