XMMS

A full M&M jug.

The M&M jug from a more dramatic angle.

M&M's are small candy coated milk chocolate delights that come in a rainbow of colors and several variations. The XINU Lab maintains a supply of these colorful treats so that members of the lab can make it through the hard days and long nights of XINU development.

Reference shot for 3-45 oz bags of M&Ms in the jug.

Reference shot for 4.5-56 oz bags of M&Ms in the jug.

Number of M&Ms in the jug

After filling the M&M jug about halfway full, I wondered about how many M&Ms it held. A little investigation and I developed this program to provide the number of M&Ms given <math>n</math> ounces.

mm.c

Perhaps someone should port this to work with the XINU code base.

#include <stdio.h>
#include <stdlib.h>

void usage(char *prog);

int main(int argc, char **argv)
{
        int oz, mm;

        if (argc != 2)
        { usage(argv[0]); }

        oz = atoi(argv[1]);

        /* empirical evidence shows 500 M&Ms per pound */
        mm = 500 * (oz / 16);

        /* catch the remaining oz */
        mm += (31 * (oz % 16));

        /* technically it is 31.25 M&Ms per ounce */
        /* so add 1 M&M for every 4 ounces */
        mm += ((oz % 16) / 4);

        printf("There are approximately %d M&Ms in %d ounces.\n", mm, oz);

        return 0;
}

void usage(char *prog)
{
        fprintf(stderr, "Usage: %s oz\n", prog);
        fprintf(stderr, "  Calculate the number of M&Ms in oz ounces.\n");
        exit(1);
}