cm-2020.rs

use time::{Date, Weekday};

fn main() {
    let n = std::env::args().nth(1).unwrap().parse().unwrap();

    let current_year = 2020;
    let mut native = 0;
    let mut bridge = 0;

    for i in 0..n {
        let date = Date::try_from_ymd(current_year + i, 12, 25).unwrap();
        print!("{}", date);

        match date.weekday() {
            Weekday::Monday | Weekday::Friday => {
                println!(": 황금");
                native += 1;
            }
            Weekday::Tuesday | Weekday::Thursday => {
                println!(": 징검다리");
                bridge += 1;
            }
            _ => {
                println!();
            }
        }
    }

    println!("합계 황금: {}, 징검다리: {}", native, bridge);
}