实验六

#include <stdio.h>
#include <math.h>
float average3(float a,float b,float c)
{
float x;
x=(a+b+c)/3;
return x;
}
float average5(float a,float b,float c,float d,float e)
{
float x;
x=(a+b+c+d+e)/5;
return x;
}
int main()
{
float student1,student2,student3,student4,student5;
float subject1,subject2,subject3;
int i,j;
float a[5][3];
for(i=0;i<5;i++)
{
for(j=0;j<3;j++){
scanf("%f",&a[i][j]);
}
}
student1=average3(a[0][0],a[0][1],a[0][2]);
student2=average3(a[1][0],a[1][1],a[1][2]);
student3=average3(a[2][0],a[2][1],a[2][2]);
student4=average3(a[3][0],a[3][1],a[3][2]);
student5=average3(a[4][0],a[4][1],a[4][2]);
printf("同学1的总平均分为：%f 同学2的总平均分为：%f 同学3的总平均分为：%f 同学4的总平均分为：%f 同学5的总平均分为：%f ",student1,student2,student3,student4,student5);

subject1=average5(a[0][0],a[1][0],a[2][0],a[3][0],a[4][0]);
subject2=average5(a[0][0],a[1][1],a[2][1],a[3][1],a[4][1]);
subject3=average5(a[0][0],a[1][1],a[2][2],a[3][2],a[4][2]);
printf("科目1的总平均分为%f 科目2的总平均分为%f 科目3的总平均分为%f ",subject1,subject2,subject3);

return 0;

}