题解 | #字符串反转#
字符串反转
https://www.nowcoder.com/practice/e45e078701ab4e4cb49393ae30f1bb04
#include <iostream>
#include <string>
int main() {
std::string str;
std::cin >> str; //读取输入的字符串
int n = str.length();
for (int i = 0; i < n / 2; ++i) {
//交换位置i和n-i-1的字符
std::swap(str[i], str[n - i -1]);
}
//输出反转后的字符串
std::cout << str << std::endl;
return 0;
}
