Practice problems across 75+ categories
Practice problems frequently asked at Two Pointers • 223 problems | 57 Easy | 134 Medium | 31 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 31 | Count the Number of Fair Pairs | Medium | ArrayTwo PointersBinary Search |
| 32 | Count the Number of Incremovable Subarrays I | Easy | ArrayTwo PointersBinary Search |
| 33 | Count the Number of Incremovable Subarrays II | Hard | ArrayTwo PointersBinary Search |
| 34 | Create Maximum Number | Hard | ArrayTwo PointersStack |
| 35 | Delete the Middle Node of a Linked List | Medium | Linked ListTwo Pointers |
| 36 | DI String Match | Easy | ArrayTwo PointersString |
| 37 | Divide Intervals Into Minimum Number of Groups | Medium | ArrayTwo PointersGreedy |
| 38 | Divide Players Into Teams of Equal Skill | Medium | ArrayHash TableTwo Pointers |
| 39 | Dot Product of Two Sparse Vectors | Medium | ArrayHash TableTwo Pointers |
| 40 | Duplicate Zeros | Easy | ArrayTwo Pointers |
| 41 | Expressive Words | Medium | ArrayTwo PointersString |
| 42 | Faulty Sensor | Easy | ArrayTwo Pointers |
| 43 | Find All K-Distant Indices in an Array | Easy | ArrayTwo Pointers |
| 44 | Find Beautiful Indices in the Given Array I | Medium | Two PointersStringBinary Search |
| 45 | Find Beautiful Indices in the Given Array II | Hard | Two PointersStringBinary Search |
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