Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 691 | Identify the Largest Outlier in an Array | Medium | ArrayHash TableCounting |
| 692 | Image Overlap | Medium | ArrayMatrix |
| 693 | Image Smoother | Easy | ArrayMatrix |
| 694 | Implement Router | Medium | ArrayHash TableBinary Search |
| 695 | Increasing Triplet Subsequence | Medium | ArrayGreedy |
| 696 | Increment Submatrices by One | Medium | ArrayMatrixPrefix Sum |
| 697 | Index Pairs of a String | Easy | ArrayStringTrie |
| 698 | Insert Delete GetRandom O(1) | Medium | ArrayHash TableMath |
| 699 | Insert Delete GetRandom O(1) - Duplicates allowed | Hard | ArrayHash TableMath |
| 700 | Insert Interval | Medium | Array |
| 701 | Intersection of Multiple Arrays | Easy | ArrayHash TableSorting |
| 702 | Intersection of Three Sorted Arrays | Easy | ArrayHash TableBinary Search |
| 703 | Intersection of Two Arrays | Easy | ArrayHash TableTwo Pointers |
| 704 | Intersection of Two Arrays II | Easy | ArrayHash TableTwo Pointers |
| 705 | Interval List Intersections | Medium | ArrayTwo PointersLine Sweep |
Powerful online tools to boost your productivity
Coding Ground For Developers
Code, Edit, Run and ShareIgnite your coding potential on Coding Ground - an immersive online platform for hands-on learning, collaboration, and skill development.
