/****************************************************************************
 * beer3.c
 *
 * Computer Science 50
 * David J. Malan
 *
 * Sings "99 Bottles of Beer on the Wall."
 *
 * Demonstrates a condition within a for loop.
 ***************************************************************************/
       
#include <cs50.h>
#include <stdio.h>

int
main(int argc, char * argv[])
{
    int i, n;
    string s1, s2;

    /* ask user for number */
    printf("How many bottles will there be? ");
    n = GetInt();

    /* exit upon invalid input */
    if (n < 1)
    {
        printf("Sorry, that makes no sense.\n");
        return 1;
    }

    /* sing the annoying song */
    printf("\n");
    for (i = n; i > 0; i--)
    {
        /* use proper grammar */
        s1 = (i == 1) ? "bottle" : "bottles";
        s2 = (i == 2) ? "bottle" : "bottles";

        /* sing verses */
        printf("%d %s of beer on the wall,\n", i, s1);
        printf("%d %s of beer,\n", i, s1);
        printf("Take one down, pass it around,\n");
        printf("%d %s of beer on the wall.\n\n", i - 1, s2);
    }

    /* exit when song is over */
    printf("Wow, that's annoying.\n");
    return 0;
}