Practice problems across 75+ categories
Practice problems frequently asked at Sorting • 464 problems | 89 Easy | 273 Medium | 101 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 151 | Intersection of Multiple Arrays | Easy | ArrayHash TableSorting |
| 152 | Intersection of Two Arrays | Easy | ArrayHash TableTwo Pointers |
| 153 | Intersection of Two Arrays II | Easy | ArrayHash TableTwo Pointers |
| 154 | Invalid Transactions | Medium | ArrayHash TableString |
| 155 | IPO | Hard | ArrayGreedySorting |
| 156 | Jump Game V | Hard | ArrayDynamic ProgrammingSorting |
| 157 | K Closest Points to Origin | Medium | ArrayMathDivide and Conquer |
| 158 | K-diff Pairs in an Array | Medium | ArrayHash TableTwo Pointers |
| 159 | K Highest Ranked Items Within a Price Range | Medium | ArrayBreadth-First SearchSorting |
| 160 | K-th Largest Perfect Subtree Size in Binary Tree | Medium | TreeDepth-First SearchSorting |
| 161 | K-th Smallest Prime Fraction | Medium | ArrayTwo PointersBinary Search |
| 162 | Keep Multiplying Found Values by Two | Easy | ArrayHash TableSorting |
| 163 | Kth Largest Element in an Array | Medium | ArrayDivide and ConquerSorting |
| 164 | Kth Largest Sum in a Binary Tree | Medium | TreeBreadth-First SearchSorting |
| 165 | Kth Smallest Element in a Sorted Matrix | Medium | ArrayBinary SearchSorting |
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