Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 61 | Average Value of Even Numbers That Are Divisible by Three | Easy | ArrayMath |
| 62 | Average Waiting Time | Medium | ArraySimulation |
| 63 | Avoid Flood in The City | Medium | ArrayHash TableBinary Search |
| 64 | Bag of Tokens | Medium | ArrayTwo PointersGreedy |
| 65 | Baseball Game | Easy | ArrayStackSimulation |
| 66 | Battleships in a Board | Medium | ArrayDepth-First SearchMatrix |
| 67 | Beautiful Arrangement | Medium | ArrayDynamic ProgrammingBacktracking |
| 68 | Beautiful Arrangement II | Medium | ArrayMath |
| 69 | Beautiful Array | Medium | ArrayMathDivide and Conquer |
| 70 | Beautiful Pairs | Hard | ArrayMathDivide and Conquer |
| 71 | Beautiful Towers I | Medium | ArrayStackMonotonic Stack |
| 72 | Beautiful Towers II | Medium | ArrayStackMonotonic Stack |
| 73 | Before and After Puzzle | Medium | ArrayHash TableString |
| 74 | Best Meeting Point | Hard | ArrayMathSorting |
| 75 | Best Poker Hand | Easy | ArrayHash TableCounting |
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