Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1501 | Longest Harmonious Subsequence | Easy | ArrayHash TableSliding Window |
| 1502 | Longest Ideal Subsequence | Medium | Hash TableStringDynamic Programming |
| 1503 | Longest Increasing Path in a Matrix | Hard | ArrayDynamic ProgrammingDepth-First Search |
| 1504 | Longest Increasing Subsequence | Medium | ArrayBinary SearchDynamic Programming |
| 1505 | Longest Increasing Subsequence II | Hard | ArrayDivide and ConquerDynamic Programming |
| 1506 | Longest Line of Consecutive One in Matrix | Medium | ArrayDynamic ProgrammingMatrix |
| 1507 | Longest Mountain in Array | Medium | ArrayTwo PointersDynamic Programming |
| 1508 | Longest Nice Subarray | Medium | ArrayBit ManipulationSliding Window |
| 1509 | Longest Nice Substring | Easy | Hash TableStringDivide and Conquer |
| 1510 | Longest Non-decreasing Subarray From Two Arrays | Medium | ArrayDynamic Programming |
| 1511 | Longest Palindrome | Easy | Hash TableStringGreedy |
| 1512 | Longest Palindrome After Substring Concatenation I | Medium | Two PointersStringDynamic Programming |
| 1513 | Longest Palindrome After Substring Concatenation II | Hard | Two PointersStringDynamic Programming |
| 1514 | Longest Palindrome by Concatenating Two Letter Words | Medium | ArrayHash TableString |
| 1515 | Longest Palindromic Subsequence | Medium | StringDynamic Programming |
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