use std::io::{self, Write};

use day22::area_to_fields;

fn main() {
    let mut buffer = String::new();

    print!("Insert the deforested area in km2: ");
    io::stdout().flush().expect("Failed to flush stdout");

    io::stdin()
        .read_line(&mut buffer)
        .expect("Failed to read line");

    let area = buffer.trim().parse().expect("The area must be an integer");

    let fields = area_to_fields(area);
    println!(
        "{} km2 is equivalent to {:.3} football fields",
        area, fields
    );
}