Practice problems across 75+ categories
Practice problems frequently asked at Sorting • 464 problems | 89 Easy | 273 Medium | 101 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 16 | Arithmetic Subarrays | Medium | ArrayHash TableSorting |
| 17 | Array of Doubled Pairs | Medium | ArrayHash TableGreedy |
| 18 | Array Partition | Easy | ArrayGreedySorting |
| 19 | Array With Elements Not Equal to Average of Neighbors | Medium | ArrayGreedySorting |
| 20 | Assign Cookies | Easy | ArrayTwo PointersGreedy |
| 21 | Average Height of Buildings in Each Segment | Medium | ArrayGreedySorting |
| 22 | Average Salary Excluding the Minimum and Maximum Salary | Easy | ArraySorting |
| 23 | Bag of Tokens | Medium | ArrayTwo PointersGreedy |
| 24 | Beautiful Pairs | Hard | ArrayMathDivide and Conquer |
| 25 | Before and After Puzzle | Medium | ArrayHash TableString |
| 26 | Best Meeting Point | Hard | ArrayMathSorting |
| 27 | Best Team With No Conflicts | Medium | ArrayDynamic ProgrammingSorting |
| 28 | Better Compression of String | Medium | Hash TableStringSorting |
| 29 | Binary Tree Vertical Order Traversal | Medium | Hash TableTreeDepth-First Search |
| 30 | Binary Trees With Factors | Medium | ArrayHash TableDynamic Programming |
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