Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 781 | Line Reflection | Medium | ArrayHash TableMath |
| 782 | Linked List Components | Medium | ArrayHash TableLinked List |
| 783 | Lonely Pixel I | Medium | ArrayHash TableMatrix |
| 784 | Lonely Pixel II | Medium | ArrayHash TableMatrix |
| 785 | Longest Alternating Subarray | Easy | ArrayEnumeration |
| 786 | Longest Arithmetic Subsequence | Medium | ArrayHash TableBinary Search |
| 787 | Longest Arithmetic Subsequence of Given Difference | Medium | ArrayHash TableDynamic Programming |
| 788 | Longest Common Prefix | Easy | ArrayStringTrie |
| 789 | Longest Common Prefix Between Adjacent Strings After Removals | Medium | ArrayString |
| 790 | Longest Common Prefix of K Strings After Removal | Hard | ArrayStringTrie |
| 791 | Longest Common Subpath | Hard | ArrayBinary SearchRolling Hash |
| 792 | Longest Common Subsequence Between Sorted Arrays | Medium | ArrayHash TableCounting |
| 793 | Longest Common Suffix Queries | Hard | ArrayStringTrie |
| 794 | Longest Consecutive Sequence | Medium | ArrayHash TableUnion Find |
| 795 | Longest Continuous Increasing Subsequence | Easy | Array |
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