数据结构与算法：第7周作业二：344反转字符串

题目描述

链接：https://leetcode-cn.com/problems/reverse-string/

解题思路

1.利用pop()和insert()的内置函数实现
2.双指针

代码

class Solution:
    def reverseString(self, s) -> None:
        for i in range (len(s)):
            s.insert(i,s.pop())

class Solution:
    def reverseString(self, s: List[str]) -> None:
        i,j = 0,len(s)-1
        while i<j:
            s[i],s[j] = s[j],s[i]
            i+=1;j-=1