reverse函数
字符串反转
http://www.nowcoder.com/questionTerminal/e45e078701ab4e4cb49393ae30f1bb04
#include<iostream>
#include<string>
#include<algorithm>
using namespace std;
int main()
{
string str;
cin>>str;
reverse(str.begin(),str.end());
cout<<str<<endl;
return 0;
}
