| # | Title | Solutions | Tag | Difficulty |
|---|---|---|---|---|
| 0001 | Two Sum | Solution | Array, Hash Table | Easy |
| 0007 | Reverse Integer | Solution | Math | Easy |
| 0033 | Search in Rotated Sorted Array | Solution | Array, Binary Search | Medium |
| 0069 | Sqrt(x) | Solution | Binary Search, Math | Easy |
| 0374 | Guess Number Higher or Lower | Solution | Binary Search, Interactive | Easy |
| 0121 | Best Time to Buy and Sell Stock | Solution | Array, Dynamic Programming | Easy |
| 0162 | Find Peak Element | Solution | Array, Binary Search | Medium |
| 0704 | Binary Search | Solution | Binary Search | Easy |
| 0791 | Custom Sort String | Solution | Hash Table, String, Sorting | Medium |
| 0852 | Peak Index in a Mountain Array | Solution | Array, Binary Search | Easy |