第四章 字符串part01
344.反转字符串
class Solution {
public:
void reverseString(vector<char>& s) {
int len = s.size();
int i = 0;
int j = len - 1 ;
while(i < j)
{
char temp = s[i];
s[i] = s[j];
s[j] = temp;
i++;
j--;
}
}
};