aoc2018rust1

main.rs

use std::fs;

fn main() {
    let contents = fs::read_to_string("../data.txt").expect("couldn't get that file, sir");

    let mut numbers = vec![];

    for (_i, raw_number) in contents.split_whitespace().enumerate() {
        let number = raw_number.parse::<i32>().expect("this ain't an int.");
        numbers.push(number);
    }
    println!("{}", numbers.iter().sum::<i32>());
}