Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 31 | Apple Redistribution into Boxes | Easy | ArrayGreedySorting |
| 32 | Apply Discount Every n Orders | Medium | ArrayHash TableDesign |
| 33 | Apply Operations on Array to Maximize Sum of Squares | Hard | ArrayHash TableGreedy |
| 34 | Apply Operations to an Array | Easy | ArrayTwo PointersSimulation |
| 35 | Apply Operations to Make All Array Elements Equal to Zero | Medium | ArrayPrefix Sum |
| 36 | Apply Operations to Make String Empty | Medium | ArrayHash TableSorting |
| 37 | Apply Operations to Maximize Frequency Score | Hard | ArrayBinary SearchSliding Window |
| 38 | Apply Operations to Maximize Score | Hard | ArrayMathStack |
| 39 | Apply Substitutions | Medium | ArrayHash TableString |
| 40 | Arithmetic Slices | Medium | ArrayDynamic ProgrammingSliding Window |
| 41 | Arithmetic Slices II - Subsequence | Hard | ArrayDynamic Programming |
| 42 | Arithmetic Subarrays | Medium | ArrayHash TableSorting |
| 43 | Array Equilibrium Index | Easy | ArraysArrayPrefix Sum |
| 44 | Array Intersection | Easy | ArraysArraySearch |
| 45 | Array Left Shift by Reversal | Easy | ArraysArrayIn-place |
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