33. Modify the program no: 23 using file concept.

#include<stdio.h>

#include<conio.h> main()

{

char *str; int len,i; FILE *fp; clrscr();

fp=fopen("vim","r");

fscanf(fp,"%s",str); len=strlen(str); for(i=len-1;i>=0;i--)

printf("%c",*(str+i)); getch();

return 0;

}

Output: emoclew