344. 反转字符串
class Solution: def reverseString(self, s: List[str]) -> None: Do not return anything, modify s in-place instead. i = 0 j = len(s) - 1 while i < j: s[i], s[j] = s[j], s[i] i += 1 j -= 1
class Solution: def reverseString(self, s: List[str]) -> None: Do not return anything, modify s in-place instead. i = 0 j = len(s) - 1 while i < j: s[i], s[j] = s[j], s[i] i += 1 j -= 1