课上作业

#include <stdio.h>
struct student
{
    int num;
    char name[20];
    int score[3];
    double aver;
};
void input(struct student stu[])
{
    int i;
    for (i = 0; i < 5; i++)
        scanf("%d%s%d%d%d",&stu[i].num,&stu[i].name, &stu[i].score[0],& stu[i].score[1], &stu[i].score[2]);
}
void avera(struct student stu[])
{
    int i, aver1,aver2,aver3,sum1=0, sum2=0, sum3=0;
    for (i = 0; i < 5; i++)
    {
        sum1 += stu[i].score[0];
        sum2 += stu[i].score[1];
        sum3 += stu[i].score[2];
        aver1 = sum1 / 5;
        aver2 = sum2 / 5;
        aver3 = sum3 / 5;
    }
    printf("aver1=%d aver2=%d aver3=%d
", aver1, aver2, aver3);
}
void averb(struct student stu[])
{
    int j;
    double sum1 = 0, sum2 = 0, sum3 = 0, sum4 = 0, sum5 = 0;
    for (j = 0; j < 3; j++){
            sum1 += stu[0].score[j];
            sum2 += stu[1].score[j];
            sum3 += stu[2].score[j];
            sum4 += stu[3].score[j];
            sum5 += stu[4].score[j];
    }
    stu[0].aver = sum1 / 3, stu[1].aver = sum2 / 3, stu[2].aver = sum3 / 3, stu[3].aver = sum4 / 3, stu[4].aver = sum5 / 3;
    printf("aver1=%f aver2=%f aver3=%f aver4=%f aver5=%f
", stu[0].aver, stu[1].aver, stu[2].aver, stu[3].aver, stu[4].aver);
}
void max(struct student stu[])
{
    int i,m=0;
    for (i = 0; i < 5; i++)
        if (stu[i].aver>stu[m].aver) m=i;
    printf("%d %s %d %d %d
", stu[m].num, stu[m].name, stu[m].score[0], stu[m].score[1], stu[m].score[2]);

}
int main()
{
    struct student stu[5],*p;
    p = stu;
    input(p);
    avera(p);
    averb(p);
    max(p);
    return 0;
}
/*1 zhao 74 89 90
2 song 77 80 91
3 zhen 68 59 96
4 yang 78 85 90
5 chen 81 99 83
aver1=75 aver2=82 aver3=90
aver1=84.333333 aver2=82.666667 aver3=74.333333 aver4=84.333333 aver5=87.666667
5 chen 81 99 83
请按任意键继续. . .*/

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