gistfile1.txt

fn main() {
    let days = 12;
    let rev_cumulative_day = 0;

    let gift = [
        "partridge in a pear tree",
        "turtle doves",
        "French hens",
        "calling birds",
        "golden rings",
        "geese a-layin'",
        "swans a-swimmin'",
        "maid a-milkin'",
        "lords a-leapin'",
        "ladies dancin'",
        "pipers pipin'",
        "drummers drummin'",
    ];

    let which = [
        "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth",
        "tenth", "eleventh", "twelfth",
    ];

    for day in 1..days {
        let index = day - 1;
        println!(
            "On the {} day of Christmas my true love gave to me",
            which[index]
        );

        if index > 0 {
            println!("{} {}", day, gift[index]);
            for rev_cumulative_day in (2..day).rev() {
                println!("{} {}", rev_cumulative_day, gift[rev_cumulative_day - 1]);
            }
            print!("and ");
        };
        println!("a {}", gift[0]);
        println!();
    }
}