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......

int main(){
    string s;
    getline(cin,s);
    // write your code here......
    int length=s.length();
    char a;
    for(int i=length-1;i>=length/2;i--)
    {
        a=s[i];
        s[i]=s[length-i-1];
        s[length-i-1]=a;
    }
    cout<<s;
    return 0;
}