Practice problems across 75+ categories
Practice problems frequently asked at Two Pointers • 223 problems | 57 Easy | 134 Medium | 31 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 196 | Squares of a Sorted Array | Easy | ArrayTwo PointersSorting |
| 197 | Strictly Palindromic Number | Medium | MathTwo PointersBrainteaser |
| 198 | String Compression | Medium | Two PointersString |
| 199 | Strobogrammatic Number | Medium | Hash TableTwo PointersString |
| 200 | Subsequence With the Minimum Score | Hard | Two PointersStringBinary Search |
| 201 | Successful Pairs of Spells and Potions | Medium | ArrayTwo PointersBinary Search |
| 202 | Sum of Consecutive Subarrays | Medium | ArrayTwo PointersDynamic Programming |
| 203 | Sum of Square Numbers | Medium | MathTwo PointersBinary Search |
| 204 | Swap Adjacent in LR String | Medium | Two PointersString |
| 205 | Swapping Nodes in a Linked List | Medium | Linked ListTwo Pointers |
| 206 | The k Strongest Values in an Array | Medium | ArrayTwo PointersSorting |
| 207 | The Latest Time to Catch a Bus | Medium | ArrayTwo PointersBinary Search |
| 208 | The Wording Game | Hard | ArrayMathTwo Pointers |
| 209 | Total Cost to Hire K Workers | Medium | ArrayTwo PointersHeap (Priority Queue) |
| 210 | Trapping Rain Water | Hard | ArrayTwo PointersDynamic Programming |
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