WAP in c to write an array into the file

#include<>stdio.h>

void main()

{

  FILE *p;

  int i,a[10];

  if((p=fopen("myfile.dat","wb"))==NULL)

  {

      printf("\nUnable to open file myfile.dat");

      exit(1);

  }

  printf("\nEnter ten values, one value on each line\n");

  for(i=0;i<10;i++)

      scanf("%d",&a[i]);

  fwrite(a,sizeof(a),1,p);

  fclose(p);

  getch();

}