大家帮帮忙,看看程序为啥报错
程序如下:#include<stdio.h>
#define N 3
struct Student
{
int num;
char name[20];
float score[3];
float aver;
};
int main()
{
void input(struct Student stu[]);
struct Student max(struct Student stu[]);
void print(struct Student stud);
struct Student stu[N],*p=stu,*q;
input(p);
q = &(max(p));
print(*q);
return 0;
}
void input(struct Student stu[])
{
int i;
printf("请输入各学生的信息:学号、姓名、3门课程成绩:\n");
for (i=0;i<N;i++)
{
scanf("%d %s %f %f %f",&stu[i].num,stu[i].name,&stu[i].score[0],
&stu[i].score[1],&stu[i].score[2]);
stu[i].aver = (stu[i].score[0]+stu[i].score[1]+stu[i].score[2])/3.0;
}
}
struct Student max(struct Student stu[])
{
int i,m=0;
for(i=0;i<N;i++)
{
if (stu[i].aver>stu[m].aver)
{
m = i;
}
}
return (stu[m]);
}
void print(struct Student stud)
{
printf("\n成绩最高的学生是:\n");
printf("学号:%d\n姓名:%s\n三门课成绩:%5.1f,%5.1f,%5.1f\n平均成绩:%6.2f\n",
stud.num,stud.name,stud.score[0],stud.score[1],stud.score[2],stud.aver);
}
以上程序的第19行报错,[Error] lvalue required as unary '&' operand
不知道是什么问题,请朋友们帮忙看看