Week 4 pc^2 project

Week 4 pc^2 project.c

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

int main()
{
    int bars, coupon;
    while(scanf("%d", &bars) != EOF)
    {
        coupon = bars;

        while(coupon >= 7)
        {
            bars = bars + (coupon / 7);
            coupon  = coupon % 7 + coupon / 7;
            //coupon left = the mod of the coupon plus the coupon acquired from redeeming.
        }
        printf("You can buy %d bars and will have %d unused coupon(s).\n", bars, coupon);
    }
    return 0;
}