实验六

#include <stdio.h>

double average1 (int a,int b,int c){
    double x;
    x=(a+b+c)/3;
    return x;
}

double average2 (int a,int b,int c,int d,int e){
    double y;
    y=(a+b+c+d+e)/5;
    return y;
}

int main(){
    printf("学号 科目一 科目二 科目三");
    int a[5][4];
    int i,j;
    double x1,x2,x3,x4,x5,y1,y2,y3;
    for(i=0;i<5;i++){
        for(j=0;j<4;j++){
            scanf("%d",&a[i][j]);
        }
    }
    x1=average1(a[0][1],a[0][2],a[0][3]);
    x2=average1(a[1][1],a[1][2],a[1][3]);
    x3=average1(a[2][1],a[2][2],a[2][3]);
    x4=average1(a[3][1],a[3][2],a[3][3]);
    x5=average1(a[4][1],a[4][2],a[4][3]);
    printf("他们的平均分：%lf %lf %lf %lf %lf",x1,x2,x3,x4,x5);
    y1=average2(a[0][1],a[1][1],a[2][1],a[3][1],a[4][1]);
    y2=average2(a[0][2],a[1][2],a[2][2],a[3][2],a[4][2]);
    y3=average2(a[0][3],a[1][3],a[2][3],a[3][3],a[4][3]);
    printf("科目平均分：科目一：%lf,科目二：%lf,科目三：%lf",y1,y2,y3);
    return 0;
}