adventofcode/2022/day01/src/main.rs

27 lines
624 B
Rust

use std::io;
use std::io::prelude::*;
use std::fs::File;
fn read_lines(filename: &str) -> io::Result<io::Lines<io::BufReader<File>>> {
let file = File::open(filename)?;
Ok(io::BufReader::new(file).lines())
}
fn main() -> Result<(), io::Error> {
let mut max = 0;
let mut current = 0;
for line in read_lines("input.txt")? {
let text = line?;
current = match text.parse::<i32>() {
Ok(value) => current + value,
Err(_) => {
if current > max { max = current; }
0
},
};
}
println!("{}", max);
Ok(())
}