/* Function strend(s,t) which returns 1 if the string t occurs at the end of
   the string s, and 0 otherwise. (using pointers) */

#include <stdio.h>

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

main()
{
        printf("%d\n",strend("hello world","world"));
}

int strend(char *s, char *t)
{
	char *start_s=s, *start_t=t;
	while(*s)
		s++;
	while(*t)
		t++;
        while(*s==*t && s!=start_s && t!=start_t)
		s--, t--;
        return *s==*t && t==start_t && *t!='\0';
}