1.序言

介绍数组相关操作

2.例题

1.双头指针
https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof/
https://leetcode-cn.com/problems/he-wei-sde-liang-ge-shu-zi-lcof/
2.二分
https://blog.csdn.net/weixin_43232955/article/details/107520092