C file handling program to print contents of file in reverse order

\* C file handling program to print contents of file in reverse order *\

# include < stdio.h >
# include < string.h >
# include < stdlib.h >
int   main( int argc, char *argv[] )
{

FILE *fp1 ;
char filename[15] ;
int cnt = 0 ;
int i = 0 ;

printf("\n Enter the filename to be opened : ") ;
scanf("%s", filename ) ;
fp1 = fopen(filename, "r") ;
if (fp1 == NULL)
{
      printf("\n %s File can not be opened : \n", filename) ;
      exit(0) ;
}

fseek( fp1, 0, SEEK_END ) ;
cnt = ftell(fp1) ;
while( i < cnt )
{
      i++ ;
      fseek( fp1, -i, SEEK_END ) ;
      printf("%c", fgetc(fp1)) ;
}
printf("\n") ;
fclose(fp1) ;
return 0 ;

}