read_columns.rs

use std::io::BufRead;

fn main() {
    let file = std::fs::File::open("resources/solarccf.txt").unwrap();
    let buf = std::io::BufReader::new(file);

    let (rv_iter, quiet_iter, active_iter) = buf
        .lines()
        .skip(2)
        .map(|l| l.unwrap().split_whitespace())
        .unzip();
}