- 240 名前：デフォルトの名無しさん mailto:sage [2007/06/26(火) 10:30:48 ]
- >>238
#include <stdio.h>
typedef struct tag_stock_t{
double price;
int quantity;
}stock_t;
int main(void)
{
stock_t x[4];
double price_sum = 0, price_ave;
int i, num = 0;
for(i = 0; i < 4; i++)
scanf("%lf%d", &x[i].price, &x[i].quantity);
for(i = 0; i < 4; i++){
price_sum += x[i].price*x[i].quantity;
num += x[i].quantity;
}
price_ave = price_sum/num;
printf("%.1f %d\n", price_ave, num);
return 0;
}
