Practice problems across 75+ categories
Practice problems frequently asked at Sliding Window • 154 problems | 18 Easy | 92 Medium | 43 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 121 | Minimum Operations to Make Elements Within K Subarrays Equal | Hard | ArrayHash TableMath |
| 122 | Minimum Operations to Make Subarray Elements Equal | Medium | ArrayHash TableMath |
| 123 | Minimum Operations to Reduce X to Zero | Medium | ArrayHash TableBinary Search |
| 124 | Minimum Positive Sum Subarray | Unknown | ArraySliding WindowPrefix Sum |
| 125 | Minimum Recolors to Get K Consecutive Black Blocks | Easy | StringSliding Window |
| 126 | Minimum Size Subarray in Infinite Array | Medium | ArrayHash TableSliding Window |
| 127 | Minimum Size Subarray Sum | Medium | ArrayBinary SearchSliding Window |
| 128 | Minimum Swaps to Group All 1's Together | Medium | ArraySliding Window |
| 129 | Minimum Swaps to Group All 1's Together II | Medium | ArraySliding Window |
| 130 | Minimum Window Subsequence | Hard | StringDynamic ProgrammingSliding Window |
| 131 | Minimum Window Substring | Hard | Hash TableStringSliding Window |
| 132 | Moving Stones Until Consecutive II | Medium | ArrayMathSliding Window |
| 133 | New 21 Game | Medium | MathDynamic ProgrammingSliding Window |
| 134 | Number of Equal Count Substrings | Medium | Hash TableStringSliding Window |
| 135 | Number of Smooth Descent Periods of a Stock | Medium | ArrayMathTwo Pointers |
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