Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1516 | Longest Palindromic Subsequence After at Most K Operations | Medium | StringDynamic Programming |
| 1517 | Longest Palindromic Subsequence II | Medium | StringDynamic Programming |
| 1518 | Longest Palindromic Substring | Medium | Two PointersStringDynamic Programming |
| 1519 | Longest Path With Different Adjacent Characters | Hard | ArrayStringTree |
| 1520 | Longest Repeating Character Replacement | Medium | Hash TableStringSliding Window |
| 1521 | Longest Repeating Substring | Medium | StringBinary SearchDynamic Programming |
| 1522 | Longest Special Path II | Hard | ArrayHash TableTree |
| 1523 | Longest Square Streak in an Array | Medium | ArrayHash TableBinary Search |
| 1524 | Longest Strictly Increasing or Strictly Decreasing Subarray | Easy | Array |
| 1525 | Longest String Chain | Medium | ArrayHash TableTwo Pointers |
| 1526 | Longest Subarray of 1's After Deleting One Element | Medium | ArrayDynamic ProgrammingSliding Window |
| 1527 | Longest Subarray With Maximum Bitwise AND | Medium | ArrayBit ManipulationBrainteaser |
| 1528 | Longest Subsequence Repeated k Times | Hard | StringBacktrackingGreedy |
| 1529 | Longest Subsequence With Decreasing Adjacent Difference | Medium | ArrayDynamic Programming |
| 1530 | Longest Subsequence With Limited Sum | Easy | ArrayBinary SearchGreedy |
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