/*
NULL + 0 is UB.
*/

#include <string.h>
#include <stddef.h>
#include <stdio.h>
#include <unistd.h>

int
statu(char *a)
{
	a += getuid() - geteuid();
	return a == NULL;
}

int
main(int argc, char **argv)
{
	char *ptr = (char *)(long)(argc - 1);
	printf("%d\n", statu(ptr));
	return 0;
}