Practice problems across 75+ categories
Practice problems frequently asked at Ordered Set • 72 problems | 3 Easy | 27 Medium | 42 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 31 | Finding MK Average | Hard | DesignQueueHeap (Priority Queue) |
| 32 | Fruits Into Baskets II | Easy | ArrayBinary SearchSegment Tree |
| 33 | Fruits Into Baskets III | Medium | ArrayBinary SearchSegment Tree |
| 34 | Implement Router | Medium | ArrayHash TableBinary Search |
| 35 | K Empty Slots | Hard | ArrayBinary Indexed TreeSegment Tree |
| 36 | Kth Smallest Path XOR Sum | Hard | ArrayTreeDepth-First Search |
| 37 | Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit | Medium | ArrayQueueSliding Window |
| 38 | Longest Substring of One Repeating Character | Hard | ArrayStringSegment Tree |
| 39 | Longest Uploaded Prefix | Medium | Hash TableBinary SearchUnion Find |
| 40 | Make Array Empty | Hard | ArrayBinary SearchGreedy |
| 41 | Max Stack | Hard | Linked ListStackDesign |
| 42 | Max Sum of Rectangle No Larger Than K | Hard | ArrayBinary SearchMatrix |
| 43 | Maximum Frequency Stack | Hard | Hash TableStackDesign |
| 44 | Maximum Increasing Triplet Value | Medium | ArrayOrdered Set |
| 45 | Maximum Segment Sum After Removals | Hard | ArrayUnion FindPrefix Sum |
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