use std::path::PathBuf;
use std::fs::File;
use std::io::{BufReader,Lines};
use crate::util::read_lines;

fn part1(lines: Lines<BufReader<File>>) {

}

pub fn subcmd_day021(file: &Option<PathBuf>, alt: &bool) {
    if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {

    }
}