Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2791 | Transform Array to All Equal Elements | Medium | ArrayGreedy |
| 2792 | Transformed Array | Easy | ArraySimulation |
| 2793 | Transpose File | Medium | Shell |
| 2794 | Transpose Matrix | Easy | ArrayMatrixSimulation |
| 2795 | Trapping Rain Water | Hard | ArrayTwo PointersDynamic Programming |
| 2796 | Trapping Rain Water II | Hard | ArrayBreadth-First SearchHeap (Priority Queue) |
| 2797 | Tree Diameter | Medium | TreeDepth-First SearchBreadth-First Search |
| 2798 | Tree Node | Medium | Database |
| 2799 | Tree of Coprimes | Hard | ArrayMathTree |
| 2800 | Triangle | Medium | ArrayDynamic Programming |
| 2801 | Trim a Binary Search Tree | Medium | TreeDepth-First SearchBinary Search Tree |
| 2802 | Triples with Bitwise AND Equal To Zero | Hard | ArrayHash TableBit Manipulation |
| 2803 | Truncate Sentence | Easy | ArrayString |
| 2804 | Tuple with Same Product | Medium | ArrayHash TableCounting |
| 2805 | Tweet Counts Per Frequency | Medium | Hash TableStringBinary Search |
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