推荐两个在线刷《剑指 Offer》的平台。

[![](https://cdn.jsdelivr.net/gh/gyl-coder/blogImgs/images/AcWing.svg)AcWing](https://www.acwing.com/problem/) [![](https://cdn.jsdelivr.net/gh/gyl-coder/blogImgs/images/niu.svg)NowCoder](https://www.nowcoder.com/ta/coding-interviews) [![](https://cdn.jsdelivr.net/gh/gyl-coder/blogImgs/images/leetcode.jpg)leetcode](https://leetcode-cn.com/problemset/lcof/)