/*
 * Program to compute binary from decimal.
 *
 * Input:  Positive decimal integer N.
 *
 * Output:  Binary equivalent of N, printed one bit per line, in
 *   reverse order (ugly!).
 */
#include <stdio.h>

int main(void) {

	int N;
	int r;
	int q;

	printf("enter decimal integer (must not be <= 0)\n");
	if (scanf("%d", &N) != 1) {
		printf("Not a number\n");
	}
	else if (N < 0) {
		printf("The number must be positive\n");
	}
	else {
		printf("bits in reverse order:\n");
		while (N > 0) {
			r = N % 2;
			q = N / 2;
			printf("%d\n", r);
			N = q;
		}
	}

	return 0;
}