# Leetcode Solutions Category by Level

See the [solutions](https://hackmd.io/@Albert-Hu/leetcode-category-by-number) in a category by number.
See the [solutions](https://hackmd.io/@Albert-Hu/leetcode-category-by-class) in a category by class.

## Easy

- [1. Two Sum](https://hackmd.io/@Albert-Hu/leetcode-1)

## Medium

- [2. Add Two Numbers](https://hackmd.io/@Albert-Hu/leetcode-2)
- [3. Longest Substring Without Repeating Characters](https://hackmd.io/@Albert-Hu/leetcode-3)
- [6. ZigZag Conversion](https://hackmd.io/@Albert-Hu/leetcode-6)
- [338. Counting Bits](https://hackmd.io/@Albert-Hu/leetcode-338)
- [343. Integer Break](https://hackmd.io/@Albert-Hu/leetcode-343)

###### tags: `leetcode`