aoc2021/src/day01.rs

fn parse_input(input: &str) -> Vec<i32> {
    input.lines().filter_map(|n| n.parse::<i32>().ok()).collect()
}

fn count_up(input: Vec<i32>) -> usize {
    input.windows(2).filter(|w| w[1]> w[0] ).count()
}

fn denoise(input: Vec<i32>) -> Vec<i32> {
    input.windows(3).map(|w| w.iter().sum()).collect::<Vec<i32>>()
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn part_1() {
        println!("Part 1 Solution: {}", count_up(parse_input(include_str!("../input/day01.txt"))));
    }

    #[test]
    fn part_2() {
        println!("Part 2 Solution: {}", count_up(denoise(parse_input(include_str!("../input/day01.txt")))));
    }
}