实验六

#include<stdio.h>
int main(){
 float average1(float a,float b,float c);
 float average2(float a,float b,float c,float d,float e);
 int a[5][3];
 int i,j,d;
 float c;
 for(i=0;i<=4;i++)
  for(j=0;j<=2;j++)
   scanf("%d",&a[i][j]);
 for(i=0;i<=4;i++)
 {c=average1(a[i][0],a[i][1],a[i][2]);
 d=i+1;
 printf("第%d名同学平均分为%.1f\n",d,c);}
    for(j=0;j<=2;j++)
 {c=average2(a[0][j],a[1][j],a[2][j],a[3][j],a[4][j]);
 d=j+1;
 printf("第%d门课程平均分为%.1f\n",d,c);}
 return 0;
}
float average1(float a,float b,float c){
 return ((a+b+c)/3);
}
float average2(float a,float b,float c,float d,float e){
 return ((a+b+c+d+e)/5);
}