HDU 2090

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=2090

Windows下的EOF结束符为Ctrl + Z

代码如下：

#include <cstdio>
using namespace std;

int main()
{
    double num, price;
    char s[20];
    double sum = 0;
    while(scanf("%s %lf %lf", s, &num, &price) != EOF)
    {
             sum += num * price;                           
    }
    printf("%.1lf\n", sum);
    return 0;    
}