Reverse a string using pointers

C program to reverse a string using pointers.

C Program

#include <stdio.h>
#include <conio.h>
void main()
{
	char *s;
	int len,i;
	clrscr();
	printf("\nENTER A STRING: ");
	gets(s);
	len=strlen(s);
	printf("\nTHE REVERSE OF THE STRING IS:");
	for(i=len;i>=0;i--)
		printf("%c",*(s+i));
	getch();
}

Output