c++輸入任意個數以空格隔開的字符串

#include <bits/stdc++.h>
using namespace std;

//此代碼順帶實現了一些特別功能
int main()
{
    string in, out;

    cin>>out;
    while (cin>>in && getchar()!='\n')
    {
        out = in + " " + out;
    }
    out = in + " " + out;

    cout<<out<<endl;

    return 0;
}