#include <stdio.h>
#include <stdlib.h> /* has rand(), srand(), RAND_MAX */

int main(void) {

	int seed;

	printf("seed?\n");
	if (scanf("%d", &seed) != 1) {
		printf("invalid input\n");
		return 1;
	}
	if (seed <= 0) {
		printf("invalid input\n");
		return 1;
	}

	srand(seed);

	/* FIXME:  
	 * replace the rest of this code with your code (but okay to keep
	 * anything you think will help).
	 */

	printf("%d\n", rand());
	printf("%d\n", rand());
	printf("%d\n", rand());
	printf("%d\n", rand());
	puts(""); /* prints a newline */

	int n = rand();
	int num_bins = 6;
	printf("next element %d\n", n);
	printf("one way to map to [0..5] %d:  %d\n", 
			n, n % num_bins);
	printf("another way map to [0..5] %d:  %d\n", 
			n, (int) ((((double) num_bins) * n)/(RAND_MAX+1.0)));
	return 0;
}