C语言经典100题中编写input()和output()函数输入，输出5个学生的数据记录。结果出现段错误（编译没问题）

Question

#include<stdio.h>
#define N 5
struct student
{
char num[6];
char name[8];
int score[4];
}stu[N];
input(stu)
struct student stu[N];
{
int i,j;
for(i=0;i<N;i++)
{
printf("\n please input %d of %d\n",i+1,N);
printf("num:");
scanf("%s",stu[i].num);
printf("name:");
scanf("%s",stu[i].name);
for(j=0;j<3;j++)
{
printf("score %d",j+1);
scanf("%d",&stu[i].score[j]);
}
printf("\n");
}
}
print(stu)
struct student stu[N];
{
int i,j;
printf("\nNo. Name Sco1 Sco2 Sco3\n");
for(j=0;j<N;j++)
{
printf("%-6s%-10s",stu[i].num,stu[i].name);
for(j=0;j<3;j++)
printf("%-8d",stu[i].score[j]);
printf("\n");
}
}
main()
{
input();
print();
}

Answer 1

从头到尾都没有看到一个类。。全是结构数组