#include<stdio.h>
#include<conio.h>
void
main()
{
  struct stud
            {
            int sno;
            float per;
            char name[20],add[20];
             }s;
  int i,n;
int
size = 0;
  char ch;
  FILE *fp;
  fp=fopen("a.txt","w");
  if(fp==NULL)
  {
  printf("\nUnable to open file!");
  }
  else
   {
    printf("\nEnter the stud
no:->");
    scanf("%d",&s.sno);
    printf("\nEnter the stud
name:->");
    scanf("%s",s.name);
   
fprintf(fp,"%d\n%s",s.sno,s.name);
            }
  fseek(fp, 0, 2);    /* file pointer at the end of file */
  size = ftell(fp);   /* take a position of file pointer un size
variable */
  printf("The size of given file is :
%d\n", size);    
  fclose(fp);
  getch();
}  
/* output
Enter the stud
no:->11
Enter the stud
name:->asha
The
size of given file is : 8    */ 
