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();}