题解 | #编写函数实现字符串翻转（引用方式）#

#include<bits/stdc++.h>
using namespace std;
// write your code here......

void Res(string &s) {
	int len = (int)s.length();
	for (int i = 0; i <(int)s.length()/2; i++) {
		char temp;
		temp = s[i];
		s[i] = s[len-1];
		s[len-1] = temp;
		len--;
	}
}
int main() {
	string s;
	getline(cin, s);
	Res(s);
	cout << s;
	return 0;
}