Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2671 | Queue Reconstruction by Height | Medium | ArrayBinary Indexed TreeSegment Tree |
| 2672 | Rabbits in Forest | Medium | ArrayHash TableMath |
| 2673 | Race Car | Hard | Dynamic Programming |
| 2674 | Random Flip Matrix | Medium | Hash TableMathReservoir Sampling |
| 2675 | Random Pick Index | Medium | Hash TableMathReservoir Sampling |
| 2676 | Random Pick with Blacklist | Hard | ArrayHash TableMath |
| 2677 | Random Pick with Weight | Medium | ArrayMathBinary Search |
| 2678 | Random Point in Non-overlapping Rectangles | Medium | ArrayMathBinary Search |
| 2679 | Range Addition | Medium | ArrayPrefix Sum |
| 2680 | Range Addition II | Easy | ArrayMath |
| 2681 | Range Frequency Queries | Medium | ArrayHash TableBinary Search |
| 2682 | Range Module | Hard | DesignSegment TreeOrdered Set |
| 2683 | Range Product Queries of Powers | Medium | ArrayBit ManipulationPrefix Sum |
| 2684 | Range Sum of BST | Easy | TreeDepth-First SearchBinary Search Tree |
| 2685 | Range Sum of Sorted Subarray Sums | Medium | ArrayTwo PointersBinary Search |
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