Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1696 | Simple Bank System | Medium | ArrayHash TableDesign |
| 1697 | Single Element in a Sorted Array | Medium | ArrayBinary Search |
| 1698 | Single Number | Easy | ArrayBit Manipulation |
| 1699 | Single Number II | Medium | ArrayBit Manipulation |
| 1700 | Single Number III | Medium | ArrayBit Manipulation |
| 1701 | Single-Threaded CPU | Medium | ArraySortingHeap (Priority Queue) |
| 1702 | Sliding Puzzle | Hard | ArrayDynamic ProgrammingBacktracking |
| 1703 | Sliding Subarray Beauty | Medium | ArrayHash TableSliding Window |
| 1704 | Sliding Window Maximum | Hard | ArrayQueueSliding Window |
| 1705 | Sliding Window Median | Hard | ArrayHash TableSliding Window |
| 1706 | Slowest Key | Easy | ArrayString |
| 1707 | Smallest Common Region | Medium | ArrayHash TableString |
| 1708 | Smallest Index With Digit Sum Equal to Index | Easy | ArrayMath |
| 1709 | Smallest Index With Equal Value | Easy | Array |
| 1710 | Smallest Missing Integer Greater Than Sequential Prefix Sum | Easy | ArrayHash TableSorting |
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