Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1876 | Toss Strange Coins | Medium | ArrayMathDynamic Programming |
| 1877 | Total Cost to Hire K Workers | Medium | ArrayTwo PointersHeap (Priority Queue) |
| 1878 | Total Hamming Distance | Medium | ArrayMathBit Manipulation |
| 1879 | Transform Array by Parity | Easy | ArraySortingCounting |
| 1880 | Transform Array to All Equal Elements | Medium | ArrayGreedy |
| 1881 | Transform to Chessboard | Hard | ArrayMathBit Manipulation |
| 1882 | Transformed Array | Easy | ArraySimulation |
| 1883 | Transpose Matrix | Easy | ArrayMatrixSimulation |
| 1884 | Trapping Rain Water | Hard | ArrayTwo PointersDynamic Programming |
| 1885 | Trapping Rain Water II | Hard | ArrayBreadth-First SearchHeap (Priority Queue) |
| 1886 | Tree of Coprimes | Hard | ArrayMathTree |
| 1887 | Triangle | Medium | ArrayDynamic Programming |
| 1888 | Triples with Bitwise AND Equal To Zero | Hard | ArrayHash TableBit Manipulation |
| 1889 | Truncate Sentence | Easy | ArrayString |
| 1890 | Tuple with Same Product | Medium | ArrayHash TableCounting |
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