Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1921 | Ways to Split Array Into Good Subarrays | Medium | ArrayMathDynamic Programming |
| 1922 | Ways to Split Array Into Three Subarrays | Medium | ArrayTwo PointersBinary Search |
| 1923 | Where Will the Ball Fall | Medium | ArrayMatrixSimulation |
| 1924 | Widest Pair of Indices With Equal Range Sum | Medium | ArrayHash TablePrefix Sum |
| 1925 | Widest Vertical Area Between Two Points Containing No Points | Easy | ArraySorting |
| 1926 | Wiggle Sort | Medium | ArrayGreedySorting |
| 1927 | Wiggle Sort II | Medium | ArrayDivide and ConquerGreedy |
| 1928 | Wiggle Subsequence | Medium | ArrayDynamic ProgrammingGreedy |
| 1929 | Word Abbreviation | Hard | ArrayStringGreedy |
| 1930 | Word Break | Medium | ArrayHash TableString |
| 1931 | Word Break II | Hard | ArrayHash TableString |
| 1932 | Word Search | Medium | ArrayStringBacktracking |
| 1933 | Word Search II | Hard | ArrayStringBacktracking |
| 1934 | Word Squares | Hard | ArrayStringBacktracking |
| 1935 | Word Subsets | Medium | ArrayHash TableString |
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