Practice problems across 75+ categories
Practice problems frequently asked at Sorting • 464 problems | 89 Easy | 273 Medium | 101 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 181 | Longest Subsequence With Limited Sum | Easy | ArrayBinary SearchGreedy |
| 182 | Longest Uncommon Subsequence II | Medium | ArrayHash TableTwo Pointers |
| 183 | Longest Word in Dictionary | Medium | ArrayHash TableString |
| 184 | Longest Word in Dictionary through Deleting | Medium | ArrayTwo PointersString |
| 185 | Magnetic Force Between Two Balls | Medium | ArrayBinary SearchSorting |
| 186 | Majority Element | Easy | ArrayHash TableDivide and Conquer |
| 187 | Majority Element II | Medium | ArrayHash TableSorting |
| 188 | Make Array Empty | Hard | ArrayBinary SearchGreedy |
| 189 | Make Array Strictly Increasing | Hard | ArrayBinary SearchDynamic Programming |
| 190 | Make Array Zero by Subtracting Equal Amounts | Easy | ArrayHash TableGreedy |
| 191 | Make K-Subarray Sums Equal | Medium | ArrayMathGreedy |
| 192 | Make Lexicographically Smallest Array by Swapping Elements | Medium | ArrayUnion FindSorting |
| 193 | Make String Anti-palindrome | Hard | StringGreedySorting |
| 194 | Make Two Arrays Equal by Reversing Subarrays | Easy | ArrayHash TableSorting |
| 195 | Mark Elements on Array by Performing Queries | Medium | ArrayHash TableSorting |
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