Practice problems across 75+ categories
Practice problems frequently asked at Sorting • 464 problems | 89 Easy | 273 Medium | 101 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 406 | Smallest Palindromic Rearrangement I | Medium | StringSortingCounting Sort |
| 407 | Smallest Range Covering Elements from K Lists | Hard | ArrayHash TableGreedy |
| 408 | Smallest Range II | Medium | ArrayMathGreedy |
| 409 | Smallest String With Swaps | Medium | ArrayHash TableString |
| 410 | Smallest Subarray to Sort in Every Sliding Window | Medium | ArrayTwo PointersStack |
| 411 | Smallest Value of the Rearranged Number | Medium | MathSorting |
| 412 | Sort an Array | Medium | ArrayDivide and ConquerSorting |
| 413 | Sort Array by Increasing Frequency | Easy | ArrayHash TableSorting |
| 414 | Sort Array by Moving Items to Empty Space | Hard | ArrayGreedySorting |
| 415 | Sort Array By Parity | Easy | ArrayTwo PointersSorting |
| 416 | Sort Array By Parity II | Easy | ArrayTwo PointersSorting |
| 417 | Sort Characters By Frequency | Medium | Hash TableStringSorting |
| 418 | Sort Colors | Medium | ArrayTwo PointersSorting |
| 419 | Sort Even and Odd Indices Independently | Easy | ArraySorting |
| 420 | Sort Features by Popularity | Medium | ArrayHash TableString |
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