#include "stdio.h"
#include "stdio.h"
#include "./student_tag.h"

void display()
{
    printf("display...");
}

void search(int mark)
{
    printf("search mark...");
}

void find_largest_average()
{
    printf("find largest average...");
}

void find_failed_students()
{
    printf("find failed students...");
}

void add_new(struct student_tag student)
{
    printf("add new...");
}

void quite()
{
    exit(1);
}