/* Function strcmp(s,t) to return the difference of the characters at the
   first position where s and t disagree. (using pointers) */

#include <stdio.h>

int strcmp(char *s, char *t);

main()
{
        printf("%d\n",strcmp("apple","application"));
}

int strcmp(char *s, char *t)
{
        for(; *s==*t && (*s || *t); s++,t++)
		;
	return *s - *t;
}