#include "stdafx.h"
#include<stdlib.h>
#include<alloc.h>
struct Date {
	int Day;
	int Month;
	int Year;
};
struct Student
{
	char FirstName[20];
	char LastName[20];
	int Age;
	Date Date;
};

int main()
{
	int n = 10;
	Student *arr = (Student*)calloc(sizeof(Student), n);
	
	// Write
	
	FILE *f = fopen("e:\\students.bin", "wb");
	fwrite(&n, sizeof(int), 1, f);
	fwrite(arr, sizeof(Student), n, f);
	fclose(f);
	free(arr);

	// Read
	FILE *f = fopen("e:\\students.bin", "rb");
	fread(&n, sizeof(int), 1, f);
	arr = (Student*)calloc(sizeof(Student), n);
	fread(arr, sizeof(Student), n, f);
	fclose(f);
	free(arr);
	
    return 0;
}