普通解题方法

解题思路:

注意事项:

参考代码:

#include<stdio.h>

#include<math.h>

int main ()

{

int a[10]; double sum = 0;

float b[10] = {28.9,32.7,45.6,78.0,35.0,86.2,27.8,43,56,65};

for (int i = 0;i <10 ;i++)

{

scanf("%d",&a[i]);

}

for (int j = 0;j < 10;j++)

{

sum += b[j]*a[j];

}

printf("%.1lf",sum);

return 0;

}