Practice problems across 75+ categories
Practice problems frequently asked at Ordered Set • 72 problems | 3 Easy | 27 Medium | 42 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 61 | Odd Even Jump | Hard | ArrayDynamic ProgrammingStack |
| 62 | Partition Array Into Two Arrays to Minimize Sum Difference | Hard | ArrayTwo PointersBinary Search |
| 63 | Random Point in Non-overlapping Rectangles | Medium | ArrayMathBinary Search |
| 64 | Range Module | Hard | DesignSegment TreeOrdered Set |
| 65 | Rectangle Area II | Hard | ArraySegment TreeLine Sweep |
| 66 | Reverse Pairs | Hard | ArrayBinary SearchDivide and Conquer |
| 67 | Sequentially Ordinal Rank Tracker | Hard | DesignHeap (Priority Queue)Data Stream |
| 68 | Shortest Distance After Road Addition Queries II | Hard | ArrayGreedyGraph |
| 69 | Smallest Number in Infinite Set | Medium | Hash TableDesignHeap (Priority Queue) |
| 70 | Stock Price Fluctuation | Medium | Hash TableDesignHeap (Priority Queue) |
| 71 | The Skyline Problem | Hard | ArrayDivide and ConquerBinary Indexed Tree |
| 72 | Tweet Counts Per Frequency | Medium | Hash TableStringBinary Search |
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