string定义一个字符串，只能用cin读入，string包含在iostream内

#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
    string name;
    cin>>name;
    double a,b;
    cin>>a>>b;
    printf("TOTAL = R$ %.2lf\n",a+b*0.15);
    return 0;
}