Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1321 | Longest Subarray With Maximum Bitwise AND | Medium | ArrayBit ManipulationBrainteaser |
| 1322 | Longest Subsequence Repeated k Times | Hard | StringBacktrackingGreedy |
| 1323 | Longest Subsequence With Decreasing Adjacent Difference | Medium | ArrayDynamic Programming |
| 1324 | Longest Subsequence With Limited Sum | Easy | ArrayBinary SearchGreedy |
| 1325 | Longest Substring Of All Vowels in Order | Medium | StringSliding Window |
| 1326 | Longest Substring of One Repeating Character | Hard | ArrayStringSegment Tree |
| 1327 | Longest Substring with At Most Two Distinct Characters | Medium | Hash TableStringSliding Window |
| 1328 | Longest Substring Without Repeating Characters | Medium | Hash TableStringSliding Window |
| 1329 | Longest Team Pass Streak | Hard | Database |
| 1330 | Longest Turbulent Subarray | Medium | ArrayDynamic ProgrammingSliding Window |
| 1331 | Longest Uncommon Subsequence II | Medium | ArrayHash TableTwo Pointers |
| 1332 | Longest Unequal Adjacent Groups Subsequence I | Easy | ArrayStringDynamic Programming |
| 1333 | Longest Unequal Adjacent Groups Subsequence II | Medium | ArrayStringDynamic Programming |
| 1334 | Longest Uploaded Prefix | Medium | Hash TableBinary SearchUnion Find |
| 1335 | Longest Valid Parentheses | Hard | StringDynamic ProgrammingStack |
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