#include <stdio.h>

#define n 5

float average(struct student stu[n]);
int max(struct student stu[n]);  
struct student  
{    char  num[6];   
     char name[10];   
     float score[6];  /*  其中最后一个元素用来保存平均成绩  */
}; struct student stu[n];

void input(struct student stu[n])
{  
    int i,j;  
    for(i=0;i<n;i++)   
    {      
        printf("学号: ");      
        scanf("%s",stu[i].num);      
        printf("姓名: ");      
        scanf("%s",stu[i].name);      
        printf("五门学科的成绩:\n");      
        scanf("%f %f %f %f %f:",&stu[i].score[0],&stu[i].score[1],&stu[i].score[2],&stu[i].score[3],&stu[i].score[4]);      
        printf("\n");     
    }  
}  

float average(struct student stu[n])
{   
    int j,i=0;   
    float sav=0,sum=0,ave;
    for(;i<n;i++)
    {   
        for(j=0;j<5;j++)   
        {     
            sum+=stu[i].score[j];   
        }     
        stu[i].score[6]=sum/5;  
        printf("学生%d的平均分为%5.2f",i+1,stu[i].score[6]);  
        printf("\n");     
        sav+=stu[i].score[6];     
        sum=0;
    }
    ave=sav/n;
    return ave;
}

int max(struct student stu[n])
{  
    int i=1,p;  
    float max;  
    max=stu[0].score[6];
    for(;i<n;i++)
    {   
        if(max<stu[i].score[6])   
        {     
            max=stu[i].score[6];     
            p=i;   
        }  
    }
    return p;  
}  

void main()  
{   
    int i,p;
    float ave;      
    input(stu);  
    ave=average(stu);
    printf("五门课的总平均分为%5.2f\n",ave);
    printf("\n");  
    p=max(stu);
    printf("最高分的学生信息:\n学号:%s\n姓名:%s\n",stu[p].num,stu[p].name);
    printf("五门学科的成绩:\n"); printf("%5.2f %5.2f %5.2f %5.2f %5.2f\n",stu[p].score[0],stu[p].score[1],stu[p].score[2],stu[p].score[3],stu[p].score[4]);
    printf("平均分为%5.2f\n",stu[p].score[6]);  
}