（指向结构体数组的指针）有n个结构体变量，内含学生学号，姓名和3门课的成绩。要求输出平均成绩最高的学生的信息

#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 stu);
	struct Student stu[N],*p = stu;
	input(p);
	print(max(p));
	return 0;
}

void input(struct Student stu[])
{
	int i;
	printf("请输入各学生的信息：学号、姓名、三门课成绩：\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;
	int 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:\n");
	printf("学号:%d\n",stud.num);
	printf("姓名:%s\n",stud.name);
	printf("三门课成绩:%5.1f,%5.1f,%5.1f\n",stud.score[0],stud.score[1],stud.score[2]);
	printf("平均成绩:%6.2f\n",stud.aver);
}