NEB34:WAP to store details about book(any 'n') having fields name,price,edition.

//WAP to store details about book(any 'n') having fields name,price,edition.
#include<stdio.h>
include<conio.h>
void main()
{
FILE *k;                                                                    //  pointer for file declaration
char book_name[30],choice;                                                    //identifier declaration
int book_price,edition;                                             //       "             "
k=fopen("book.dat","w");
do
{
printf("enter book's name\n");                                       // getting inuts
gets(book_name);
printf("enter edition\n");
scanf("%d",&edition);
printf("enter book's price\n");
scanf("%d",&book_price);
fprintf(k,"%s %d %d",book_name,edition,book_price);   //writing data to data file
printf("want to continue y/n\n");
choice=getche();                                                        //getting a character from user  
}while(choice!='n');                                                      // validating the input
printf("writing process completed successfully\n");
fclose(k);                                                                                   //closing data file
getch();
}