学步园

题目链接：http://bailian.openjudge.cn/practice/2675

# include <stdio.h>

int main()
{
	int k,i,j,buy[10];
	double sum,name[10]={28.9,32.7,45.6,78,35,86.2,27.8,43,56,65};

	scanf("%d",&k);

	for(j=0;j<k;j++)
	{
		sum=0;
		for(i=0;i<10;i++)
		{
			scanf("%d",&buy[i]);
			sum=sum+buy[i]*name[i];
		}
		printf("%.2f\n",sum);
	}

	return 0;
}