From e9d49de28d9e5c4c2ca89af56835cb2620374aeb Mon Sep 17 00:00:00 2001 From: "Dustin C. Hatch" Date: Thu, 2 Dec 2021 23:06:04 -0600 Subject: [PATCH] Day 2, part 1 --- day2-input.txt | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++ src/main.rs | 16 + src/pilot.rs | 45 +++ 3 files changed, 1061 insertions(+) create mode 100644 day2-input.txt create mode 100644 src/pilot.rs diff --git a/day2-input.txt b/day2-input.txt new file mode 100644 index 0000000..9e714f9 --- /dev/null +++ b/day2-input.txt @@ -0,0 +1,1000 @@ +forward 2 +down 8 +down 1 +up 7 +forward 4 +down 4 +down 3 +forward 2 +forward 5 +forward 2 +forward 7 +forward 8 +down 7 +forward 6 +forward 1 +down 8 +down 8 +up 9 +down 9 +forward 1 +up 1 +forward 6 +forward 7 +down 7 +forward 4 +forward 2 +forward 1 +forward 3 +forward 8 +forward 4 +up 6 +down 2 +forward 4 +down 3 +up 3 +up 2 +up 3 +forward 8 +down 5 +down 8 +down 5 +down 4 +down 2 +up 1 +forward 6 +forward 6 +forward 8 +up 5 +down 5 +forward 8 +forward 7 +down 9 +down 7 +down 6 +down 3 +forward 3 +up 7 +forward 2 +up 6 +forward 7 +forward 9 +down 9 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5 +down 3 +up 1 +up 2 +down 5 +down 7 +forward 8 +down 8 +up 9 +forward 3 +down 8 +down 8 +forward 1 +down 4 +down 4 +forward 3 +up 6 +down 3 +down 7 +down 7 +up 1 +forward 3 +forward 2 diff --git a/src/main.rs b/src/main.rs index 262a8a3..7f624b5 100644 --- a/src/main.rs +++ b/src/main.rs @@ -2,6 +2,7 @@ use std::io; use argh::FromArgs; +mod pilot; mod sonar; #[derive(FromArgs)] @@ -15,6 +16,7 @@ struct Arguments { #[argh(subcommand)] enum SubCommand { Sonar(SonarTracker), + Pilot(SubPilot), } #[derive(FromArgs)] @@ -30,6 +32,15 @@ struct SonarTracker { window: usize, } +#[derive(FromArgs)] +/// pilot the sub! +#[argh(subcommand, name = "pilot")] +struct SubPilot { + /// path to input data file + #[argh(positional)] + input: String, +} + fn main() -> io::Result<()> { let args: Arguments = argh::from_env(); match args.command { @@ -37,6 +48,11 @@ fn main() -> io::Result<()> { let count_incr = sonar::count_increases(&args.input, args.window)?; println!("number of increases: {}", count_incr); } + SubCommand::Pilot(args) => { + let pos = pilot::track_position(&args.input)?; + println!("Final Position: {},{}", pos.linear, pos.depth); + println!("Product: {}", pos.linear * pos.depth); + } } Ok(()) } diff --git a/src/pilot.rs b/src/pilot.rs new file mode 100644 index 0000000..7925cf6 --- /dev/null +++ b/src/pilot.rs @@ -0,0 +1,45 @@ +use std::fs::File; +use std::io; +use std::io::prelude::*; + +pub struct Position { + pub linear: i32, + pub depth: i32, +} + +pub fn track_position(filename: &str) -> io::Result { + let f = File::open(filename)?; + let buf = io::BufReader::new(f); + let mut pos = Position { + linear: 0, + depth: 0, + }; + for line in buf.lines() { + if let Ok(line) = line { + let mut parts = line.split_whitespace(); + if let Some(op) = parts.next() { + if let Some(value) = parts.next() { + if let Ok(value) = i32::from_str_radix(value, 10) { + match op { + "forward" => { + pos.linear += value; + } + "down" => { + pos.depth += value; + } + "up" => { + pos.depth -= value; + } + _ => { + eprintln!("Invalid operation: {}", op); + } + } + } else { + eprintln!("Invalid value: {}", value); + } + } + } + } + } + Ok(pos) +}