实验6

#include<stdio.h>
double averange(double a,double b,double c){
 return (a+b+c)/3;
}double averange2(double a,double b,double c,double d,double e){
 return (a+b+c+d+e)/5;
}
int main(){
 double a[5][3];
 int i,j;
 for(i=0;i<5;i++){
  for(j=0;j<3;j++){
   scanf("%lf",&a[i][j]);
  }
 }
 printf("*****************************\n");
 printf("*                           *\n");
 printf("*                           *\n");
 printf("*                           *\n");
 for(i=0;i<5;i++){
  printf("* 学生%d的平均分：%10.4lf *\n",i+1,averange(a[i][0],a[i][1],a[i][2]));
 }
 printf("*                           *\n");
 for(i=0;i<3;i++){
  printf("* 学科%d的平均分：%10.4lf *\n",i+1,averange2(a[0][i],a[1][i],a[2][i],a[3][i],a[4][i]));
 }
 printf("*                           *\n");
 printf("*                           *\n");
 printf("*                           *\n");
 printf("*****************************\n");
}