编辑代码

#include<stdio.h>
#include<malloc.h>
#define SIZE sizeof(struct stu)
struct stu{
    int num;
    char name[20];
    float mscore;
    float yscore;
    struct stu *next;
};
void main()
{
    int n=0;
    float summ=0,sumy=0;
    struct stu *head,*p1,*p2,*maxm,*maxy;
    p1=p2=(struct stu*)malloc(SIZE);
    scanf("%d%s%f%f",&p1->num,p1->name,&p1->mscore,&p1->yscore);
    head=NULL;
    while(p1->num!=0)
    {
        n=n+1;
        if(n==1) head=p1;
        else p2->next=p1;
        p2=p1;
        p1=(struct stu*)malloc(SIZE);
        scanf("%d%s%f%f",&p1->num,p1->name,&p1->mscore,&p1->yscore);
    }
    p2->next=NULL;
    maxm=maxy=p1=head;
    while(p1!=NULL)
    {
        summ=summ+p1->mscore;
        sumy=sumy+p1->yscore;
        if(maxm->mscore<p1->mscore) maxm=p1;
        if(maxy->yscore<p1->yscore) maxy=p1;
        p1=p1->next;
    }
    printf("数学平均分：%.2f\n",summ/n);
    printf("语文平均分：%.2f\n",sumy/n);
    printf("数学最高分：%s %.2f\n",maxm->name,maxm->mscore);
    printf("语文最高分：%s %.2f",maxy->name,maxy->yscore);
}