2022/data/day9.expected

@@ -1,2 +0,0 @@
-5619
-2376

2022/day9/rust/Cargo.toml

@@ -1,9 +0,0 @@
-[package]
-name = "rust_2022_09"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-aoc = { path = "../../../common/rust" }

2022/day9/rust/src/main.rs

@@ -1,115 +0,0 @@
-#![warn(clippy::pedantic)]
-
-use std::{
-    collections::BTreeSet,
-    io::{stdin, Read},
-    ops::{Add, AddAssign, Sub},
-};
-
-use aoc::*;
-
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct Vec2 {
-    x: i32, // increases toward right
-    y: i32, // increases toward top
-}
-
-impl Vec2 {
-    #[must_use]
-    pub fn new(x: i32, y: i32) -> Self {
-        Self { x, y }
-    }
-
-    #[must_use]
-    pub fn map(self, mut f: impl FnMut(i32) -> i32) -> Self {
-        Self {
-            x: f(self.x),
-            y: f(self.y),
-        }
-    }
-}
-
-impl Add for Vec2 {
-    type Output = Self;
-
-    fn add(self, rhs: Self) -> Self::Output {
-        Self {
-            x: self.x + rhs.x,
-            y: self.y + rhs.y,
-        }
-    }
-}
-
-impl AddAssign for Vec2 {
-    fn add_assign(&mut self, rhs: Self) {
-        self.x += rhs.x;
-        self.y += rhs.y;
-    }
-}
-
-impl Sub for Vec2 {
-    type Output = Self;
-
-    fn sub(self, rhs: Self) -> Self::Output {
-        Self {
-            x: self.x - rhs.x,
-            y: self.y - rhs.y,
-        }
-    }
-}
-
-impl From<(i32, i32)> for Vec2 {
-    fn from((x, y): (i32, i32)) -> Self {
-        Self { x, y }
-    }
-}
-
-impl From<Vec2> for (i32, i32) {
-    fn from(v: Vec2) -> Self {
-        (v.x, v.y)
-    }
-}
-
-fn get_direction_vec(direction: &str) -> Vec2 {
-    match direction {
-        "U" => (0, 1),
-        "R" => (1, 0),
-        "D" => (0, -1),
-        "L" => (-1, 0),
-        _ => panic!(),
-    }
-    .into()
-}
-
-fn main() {
-    let mut data = String::new();
-    stdin().read_to_string(&mut data).unwrap();
-
-    let mut knots = vec![Vec2::new(0, 0); 10];
-
-    let mut tail_positions = BTreeSet::new();
-    tail_positions.insert(*knots.last().unwrap());
-
-    for line in data.lines() {
-        let (direction, distance) = line.split_once(' ').unwrap();
-        let distance: usize = distance.parse().unwrap();
-
-        for _i in 0..distance {
-            knots[0] += get_direction_vec(direction);
-            let mut following = knots[0];
-
-            for knot in &mut knots[1..] {
-                let delta = match (following - *knot).into() {
-                    (x, y) if x.abs() <= 1 && y.abs() <= 1 => (0, 0),
-                    (x, y) => (x.signum(), y.signum()),
-                }
-                .into();
-                *knot += delta;
-                following = *knot;
-            }
-            tail_positions.insert(*knots.last().unwrap());
-        }
-    }
-
-    println!("{:?}", tail_positions.len());
-}

Cargo.lock

@@ -524,13 +524,6 @@ dependencies = [
  "aoc",
 ]
 
-[[package]]
-name = "rust_2022_09"
-version = "0.1.0"
-dependencies = [
- "aoc",
-]
-
 [[package]]
 name = "ryu"
 version = "1.0.11"

Cargo.toml

@@ -18,5 +18,4 @@ members = [
 	"2022/day6/rust",
 	"2022/day7/rust",
 	"2022/day8/rust",
-	"2022/day9/rust",
 ]