Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1516 | Path With Minimum Effort | Medium | ArrayBinary SearchDepth-First Search |
| 1517 | Paths in Matrix Whose Sum Is Divisible by K | Hard | ArrayDynamic ProgrammingMatrix |
| 1518 | Peak Index in a Mountain Array | Medium | ArrayBinary Search |
| 1519 | Peaks in Array | Hard | ArrayBinary Indexed TreeSegment Tree |
| 1520 | Peeking Iterator | Medium | ArrayDesignIterator |
| 1521 | People Whose List of Favorite Companies Is Not a Subset of Another List | Medium | ArrayHash TableString |
| 1522 | Perfect Rectangle | Hard | ArrayHash TableMath |
| 1523 | Perform String Shifts | Easy | ArrayMathString |
| 1524 | Permutations | Medium | ArrayBacktracking |
| 1525 | Permutations II | Medium | ArrayBacktrackingSorting |
| 1526 | Permutations III | Medium | ArrayBacktracking |
| 1527 | Permutations IV | Hard | ArrayMathCombinatorics |
| 1528 | Phone Number Prefix | Easy | ArrayStringTrie |
| 1529 | Pizza With 3n Slices | Hard | ArrayDynamic ProgrammingGreedy |
| 1530 | Plates Between Candles | Medium | ArrayStringBinary Search |
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