https://leetcode-cn.com/problems/reverse-string/
用直接逆序s[::-1]的方法发现行不通,还是老实交换吧:
s[::-1]
class Solution: def reverseString(self, s: List[str]) -> None: """ Do not return anything, modify s in-place instead. """ i, j = 0, len(s)-1 while i < j: s[i], s[j] = s[j], s[i] i += 1 j -= 1
最后更新于5年前