Day 5 puzzle

Cargo.lock

@@ -10,6 +10,7 @@ dependencies = [
  "day2",
  "day3",
  "day4",
+ "day5",
 ]
 
 [[package]]
@@ -27,3 +28,7 @@ version = "0.1.0"
 [[package]]
 name = "day4"
 version = "0.1.0"
+
+[[package]]
+name = "day5"
+version = "0.1.0"

Cargo.toml

@@ -7,14 +7,12 @@ edition = "2021"
 
 [workspace]
 members = [
-	"day1",
-	"day2",
-	"day3",
-	"day4"
+	"day*"
 ]
 
 [dependencies]
 day1 = { path = "./day1" }
 day2 = { path = "./day2" }
 day3 = { path = "./day3" }
-day4 = { path = "./day4" }
+day4 = { path = "./day4" }
+day5 = { path = "./day5" }

day5/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "day5"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

day5/src/input.txt

@@ -0,0 +1,514 @@
+    [B]             [B] [S]
+    [M]             [P] [L] [B] [J]
+    [D]     [R]     [V] [D] [Q] [D]
+    [T] [R] [Z]     [H] [H] [G] [C]
+    [P] [W] [J] [B] [J] [F] [J] [S]
+[N] [S] [Z] [V] [M] [N] [Z] [F] [M]
+[W] [Z] [H] [D] [H] [G] [Q] [S] [W]
+[B] [L] [Q] [W] [S] [L] [J] [W] [Z]
+ 1   2   3   4   5   6   7   8   9
+
+move 3 from 5 to 2
+move 5 from 3 to 1
+move 4 from 4 to 9
+move 6 from 1 to 4
+move 6 from 8 to 7
+move 5 from 2 to 7
+move 1 from 5 to 4
+move 11 from 9 to 7
+move 1 from 1 to 9
+move 6 from 4 to 6
+move 12 from 6 to 7
+move 1 from 9 to 2
+move 2 from 4 to 6
+move 1 from 8 to 9
+move 1 from 9 to 4
+move 1 from 6 to 1
+move 2 from 7 to 5
+move 2 from 6 to 7
+move 2 from 1 to 6
+move 2 from 4 to 7
+move 1 from 5 to 4
+move 1 from 5 to 6
+move 1 from 6 to 1
+move 1 from 1 to 3
+move 1 from 4 to 1
+move 1 from 1 to 4
+move 1 from 4 to 5
+move 1 from 3 to 9
+move 1 from 5 to 1
+move 4 from 2 to 1
+move 20 from 7 to 8
+move 24 from 7 to 3
+move 3 from 6 to 4
+move 1 from 1 to 9
+move 1 from 9 to 3
+move 2 from 1 to 2
+move 2 from 4 to 1
+move 2 from 2 to 1
+move 14 from 3 to 6
+move 6 from 1 to 6
+move 10 from 3 to 2
+move 1 from 2 to 3
+move 6 from 6 to 5
+move 2 from 3 to 4
+move 13 from 8 to 4
+move 1 from 9 to 7
+move 1 from 6 to 3
+move 10 from 4 to 2
+move 1 from 3 to 6
+move 2 from 8 to 7
+move 1 from 7 to 2
+move 11 from 6 to 8
+move 2 from 6 to 1
+move 2 from 1 to 3
+move 1 from 8 to 6
+move 1 from 3 to 9
+move 3 from 8 to 2
+move 1 from 3 to 6
+move 2 from 6 to 4
+move 1 from 6 to 5
+move 11 from 2 to 9
+move 2 from 4 to 6
+move 1 from 6 to 1
+move 1 from 1 to 5
+move 11 from 2 to 7
+move 12 from 7 to 5
+move 1 from 6 to 2
+move 10 from 8 to 7
+move 6 from 5 to 3
+move 4 from 5 to 4
+move 11 from 9 to 7
+move 7 from 4 to 9
+move 4 from 9 to 6
+move 12 from 7 to 3
+move 1 from 8 to 9
+move 1 from 5 to 1
+move 1 from 1 to 2
+move 1 from 6 to 9
+move 3 from 4 to 1
+move 1 from 9 to 7
+move 8 from 7 to 2
+move 3 from 6 to 1
+move 8 from 2 to 3
+move 1 from 7 to 4
+move 2 from 7 to 2
+move 1 from 5 to 2
+move 8 from 5 to 1
+move 3 from 9 to 6
+move 1 from 6 to 2
+move 1 from 4 to 5
+move 1 from 5 to 4
+move 2 from 9 to 3
+move 1 from 8 to 6
+move 1 from 4 to 5
+move 1 from 5 to 1
+move 1 from 6 to 8
+move 1 from 8 to 1
+move 7 from 1 to 5
+move 11 from 3 to 7
+move 1 from 1 to 9
+move 4 from 2 to 1
+move 5 from 1 to 3
+move 1 from 5 to 9
+move 1 from 6 to 3
+move 6 from 2 to 1
+move 5 from 7 to 3
+move 1 from 6 to 8
+move 1 from 8 to 4
+move 6 from 7 to 9
+move 4 from 9 to 8
+move 2 from 8 to 9
+move 2 from 5 to 8
+move 13 from 3 to 7
+move 1 from 3 to 8
+move 2 from 1 to 9
+move 3 from 1 to 5
+move 1 from 4 to 1
+move 6 from 5 to 9
+move 8 from 9 to 8
+move 2 from 7 to 3
+move 1 from 9 to 7
+move 1 from 5 to 2
+move 5 from 9 to 8
+move 1 from 8 to 7
+move 1 from 2 to 9
+move 7 from 1 to 2
+move 4 from 7 to 5
+move 6 from 2 to 3
+move 1 from 2 to 1
+move 10 from 8 to 9
+move 3 from 8 to 9
+move 4 from 5 to 1
+move 2 from 8 to 6
+move 9 from 9 to 8
+move 1 from 9 to 6
+move 8 from 8 to 4
+move 12 from 3 to 5
+move 1 from 4 to 2
+move 3 from 8 to 1
+move 3 from 9 to 7
+move 1 from 3 to 2
+move 1 from 6 to 9
+move 8 from 3 to 8
+move 6 from 4 to 5
+move 1 from 7 to 6
+move 1 from 8 to 1
+move 6 from 8 to 7
+move 1 from 3 to 6
+move 7 from 1 to 5
+move 1 from 4 to 9
+move 4 from 6 to 5
+move 13 from 7 to 5
+move 1 from 8 to 2
+move 2 from 9 to 3
+move 4 from 7 to 2
+move 1 from 3 to 8
+move 1 from 3 to 4
+move 4 from 1 to 2
+move 1 from 5 to 7
+move 23 from 5 to 6
+move 1 from 8 to 6
+move 1 from 9 to 4
+move 5 from 2 to 6
+move 1 from 4 to 9
+move 1 from 9 to 3
+move 1 from 7 to 8
+move 1 from 4 to 3
+move 1 from 3 to 7
+move 1 from 7 to 5
+move 1 from 8 to 7
+move 12 from 6 to 1
+move 1 from 2 to 5
+move 1 from 3 to 1
+move 20 from 5 to 2
+move 14 from 2 to 4
+move 11 from 2 to 6
+move 1 from 7 to 8
+move 13 from 1 to 8
+move 9 from 8 to 4
+move 3 from 8 to 6
+move 10 from 6 to 8
+move 6 from 6 to 4
+move 4 from 8 to 5
+move 26 from 4 to 2
+move 2 from 5 to 2
+move 5 from 8 to 1
+move 1 from 8 to 3
+move 2 from 1 to 3
+move 2 from 3 to 7
+move 27 from 2 to 7
+move 2 from 8 to 1
+move 1 from 3 to 7
+move 6 from 6 to 2
+move 4 from 6 to 1
+move 4 from 6 to 4
+move 2 from 5 to 4
+move 4 from 2 to 1
+move 3 from 1 to 8
+move 1 from 2 to 8
+move 8 from 4 to 3
+move 1 from 2 to 8
+move 5 from 8 to 6
+move 1 from 4 to 2
+move 1 from 2 to 1
+move 6 from 3 to 1
+move 13 from 7 to 1
+move 1 from 2 to 8
+move 1 from 8 to 2
+move 1 from 6 to 2
+move 1 from 2 to 8
+move 1 from 8 to 2
+move 14 from 7 to 1
+move 5 from 6 to 3
+move 2 from 3 to 1
+move 3 from 3 to 2
+move 3 from 7 to 4
+move 1 from 4 to 9
+move 1 from 9 to 7
+move 2 from 3 to 6
+move 5 from 2 to 7
+move 1 from 7 to 6
+move 5 from 7 to 6
+move 2 from 6 to 7
+move 1 from 6 to 8
+move 1 from 4 to 7
+move 4 from 6 to 9
+move 35 from 1 to 8
+move 3 from 7 to 2
+move 1 from 2 to 5
+move 24 from 8 to 3
+move 1 from 5 to 8
+move 13 from 3 to 6
+move 2 from 2 to 6
+move 6 from 6 to 4
+move 11 from 1 to 6
+move 12 from 6 to 1
+move 1 from 8 to 1
+move 2 from 1 to 3
+move 5 from 4 to 1
+move 1 from 6 to 4
+move 1 from 8 to 3
+move 13 from 3 to 9
+move 3 from 8 to 2
+move 3 from 2 to 7
+move 1 from 3 to 6
+move 3 from 7 to 8
+move 14 from 1 to 3
+move 1 from 1 to 9
+move 6 from 3 to 8
+move 17 from 8 to 6
+move 1 from 3 to 7
+move 1 from 7 to 8
+move 26 from 6 to 7
+move 1 from 1 to 9
+move 3 from 4 to 1
+move 2 from 3 to 8
+move 1 from 8 to 4
+move 14 from 9 to 7
+move 12 from 7 to 3
+move 2 from 1 to 4
+move 2 from 7 to 8
+move 2 from 8 to 3
+move 4 from 9 to 8
+move 1 from 4 to 7
+move 1 from 1 to 3
+move 2 from 4 to 2
+move 24 from 7 to 6
+move 1 from 8 to 1
+move 1 from 7 to 2
+move 1 from 7 to 9
+move 3 from 2 to 9
+move 1 from 1 to 6
+move 5 from 8 to 2
+move 5 from 3 to 4
+move 1 from 2 to 5
+move 3 from 9 to 8
+move 2 from 4 to 9
+move 16 from 6 to 3
+move 14 from 3 to 8
+move 1 from 7 to 9
+move 8 from 6 to 9
+move 4 from 8 to 5
+move 8 from 8 to 3
+move 1 from 5 to 8
+move 1 from 2 to 4
+move 4 from 8 to 7
+move 1 from 5 to 6
+move 12 from 9 to 5
+move 15 from 5 to 8
+move 1 from 6 to 1
+move 2 from 2 to 6
+move 3 from 4 to 2
+move 4 from 2 to 7
+move 8 from 7 to 3
+move 1 from 1 to 4
+move 3 from 6 to 9
+move 16 from 8 to 3
+move 3 from 9 to 4
+move 1 from 8 to 9
+move 2 from 9 to 4
+move 24 from 3 to 8
+move 19 from 8 to 7
+move 2 from 8 to 7
+move 7 from 4 to 5
+move 13 from 7 to 5
+move 4 from 7 to 8
+move 7 from 8 to 1
+move 3 from 5 to 3
+move 3 from 7 to 2
+move 1 from 1 to 4
+move 1 from 7 to 2
+move 3 from 2 to 4
+move 8 from 3 to 1
+move 11 from 1 to 3
+move 12 from 3 to 4
+move 1 from 2 to 5
+move 18 from 3 to 8
+move 3 from 1 to 9
+move 1 from 3 to 5
+move 15 from 5 to 4
+move 4 from 5 to 1
+move 23 from 4 to 6
+move 3 from 1 to 6
+move 13 from 8 to 3
+move 25 from 6 to 2
+move 1 from 9 to 5
+move 5 from 3 to 8
+move 17 from 2 to 8
+move 4 from 4 to 1
+move 1 from 9 to 7
+move 5 from 2 to 6
+move 2 from 2 to 4
+move 1 from 9 to 4
+move 6 from 3 to 9
+move 16 from 8 to 3
+move 2 from 1 to 8
+move 1 from 7 to 4
+move 5 from 4 to 7
+move 1 from 5 to 3
+move 2 from 7 to 1
+move 9 from 8 to 4
+move 3 from 7 to 2
+move 2 from 8 to 3
+move 10 from 4 to 1
+move 1 from 2 to 3
+move 5 from 3 to 7
+move 2 from 8 to 9
+move 2 from 9 to 8
+move 1 from 2 to 1
+move 3 from 9 to 6
+move 2 from 2 to 8
+move 4 from 7 to 3
+move 4 from 8 to 6
+move 1 from 7 to 1
+move 1 from 4 to 8
+move 4 from 3 to 4
+move 4 from 4 to 2
+move 6 from 1 to 2
+move 1 from 4 to 3
+move 5 from 3 to 8
+move 6 from 3 to 8
+move 2 from 2 to 8
+move 3 from 2 to 9
+move 8 from 1 to 6
+move 3 from 2 to 7
+move 2 from 7 to 2
+move 13 from 6 to 5
+move 7 from 5 to 9
+move 3 from 2 to 7
+move 1 from 2 to 9
+move 2 from 5 to 2
+move 3 from 8 to 5
+move 5 from 3 to 4
+move 2 from 2 to 1
+move 9 from 8 to 7
+move 1 from 1 to 8
+move 6 from 5 to 2
+move 4 from 2 to 8
+move 4 from 7 to 1
+move 1 from 2 to 6
+move 5 from 1 to 6
+move 1 from 8 to 2
+move 1 from 2 to 9
+move 13 from 6 to 5
+move 2 from 7 to 2
+move 1 from 8 to 7
+move 4 from 4 to 7
+move 1 from 4 to 1
+move 4 from 8 to 4
+move 6 from 5 to 9
+move 2 from 1 to 4
+move 1 from 8 to 6
+move 11 from 9 to 5
+move 1 from 7 to 8
+move 1 from 8 to 1
+move 1 from 1 to 3
+move 6 from 4 to 8
+move 1 from 8 to 4
+move 1 from 1 to 6
+move 6 from 9 to 7
+move 1 from 4 to 5
+move 3 from 2 to 1
+move 1 from 8 to 2
+move 1 from 3 to 2
+move 20 from 5 to 6
+move 3 from 1 to 6
+move 2 from 2 to 9
+move 3 from 8 to 3
+move 5 from 3 to 8
+move 1 from 1 to 6
+move 2 from 8 to 9
+move 7 from 9 to 5
+move 3 from 5 to 4
+move 3 from 8 to 3
+move 9 from 7 to 9
+move 1 from 8 to 5
+move 7 from 7 to 9
+move 2 from 5 to 2
+move 9 from 9 to 2
+move 1 from 7 to 3
+move 2 from 9 to 1
+move 2 from 5 to 9
+move 2 from 1 to 4
+move 2 from 3 to 7
+move 18 from 6 to 7
+move 7 from 9 to 1
+move 7 from 6 to 8
+move 4 from 4 to 9
+move 4 from 8 to 3
+move 2 from 8 to 2
+move 1 from 8 to 5
+move 1 from 4 to 7
+move 1 from 5 to 1
+move 2 from 9 to 3
+move 12 from 2 to 5
+move 6 from 5 to 6
+move 5 from 7 to 2
+move 3 from 6 to 4
+move 1 from 4 to 7
+move 1 from 4 to 1
+move 2 from 5 to 8
+move 1 from 8 to 2
+move 2 from 9 to 7
+move 8 from 1 to 8
+move 11 from 7 to 1
+move 5 from 8 to 2
+move 7 from 7 to 5
+move 1 from 9 to 4
+move 1 from 7 to 5
+move 7 from 5 to 7
+move 2 from 6 to 1
+move 1 from 8 to 2
+move 12 from 1 to 7
+move 2 from 1 to 2
+move 3 from 8 to 5
+move 3 from 5 to 2
+move 8 from 7 to 3
+move 1 from 3 to 1
+move 3 from 6 to 4
+move 4 from 5 to 6
+move 14 from 2 to 9
+move 3 from 6 to 9
+move 3 from 4 to 2
+move 1 from 1 to 7
+move 1 from 7 to 1
+move 3 from 3 to 5
+move 8 from 7 to 4
+move 1 from 5 to 9
+move 3 from 2 to 4
+move 1 from 3 to 4
+move 4 from 2 to 6
+move 2 from 6 to 7
+move 3 from 5 to 4
+move 16 from 4 to 1
+move 7 from 9 to 8
+move 1 from 5 to 1
+move 3 from 7 to 9
+move 3 from 9 to 4
+move 7 from 1 to 7
+move 6 from 7 to 1
+move 5 from 3 to 1
+move 11 from 9 to 2
+move 3 from 4 to 6
+move 9 from 2 to 8
+move 6 from 3 to 5
+move 2 from 8 to 6
+move 5 from 5 to 3
+move 2 from 7 to 1
+move 3 from 3 to 9
+move 1 from 2 to 4
+move 1 from 5 to 1
+move 13 from 1 to 2
+move 5 from 8 to 6
+move 2 from 3 to 9
+move 2 from 4 to 7
+move 5 from 6 to 9
+move 7 from 9 to 1
+move 3 from 7 to 2
+move 6 from 8 to 6
+move 5 from 6 to 2
+move 2 from 8 to 3
+move 2 from 9 to 4
+move 6 from 2 to 5
+move 1 from 3 to 7

day5/src/lib.rs

@@ -0,0 +1,108 @@
+pub fn start() {
+	let input = include_str!("input.txt").replace("\r", "");
+
+	let (crates, moves) = input.split_once("\n\n").unwrap();
+
+	let mut stacks = get_stacks(crates);
+	moves.lines().map(|f| Move::from_line(f)).for_each(|m| {
+		(0..m.amount).for_each(|_| {
+			let from = stacks[m.from - 1].pop().unwrap();
+			stacks[m.to - 1].push(from);
+		})
+	});
+	let res1 = stacks
+		.iter_mut()
+		.map(|f| f.pop().unwrap_or(' '))
+		.collect::<String>();
+
+	println!("Part 1: {}", res1);
+
+	let mut stacks = get_stacks(crates);
+	moves.lines().map(|f| Move::from_line(f)).for_each(|m| {
+		let amount = stacks[m.from - 1].len() - m.amount..;
+		let crates: Vec<char> = stacks[m.from - 1].drain(amount).collect();
+		stacks[m.to - 1].extend(crates);
+	});
+	let res2 = stacks
+		.iter_mut()
+		.map(|s| s.pop().unwrap_or(' '))
+		.collect::<String>();
+
+	println!("Part 2: {}", res2);
+}
+
+pub fn get_stacks(crates: &str) -> Vec<Vec<char>> {
+	let width = crates
+		.lines()
+		.rev()
+		.next()
+		.unwrap()
+		.split_whitespace()
+		.last()
+		.unwrap()
+		.parse::<usize>()
+		.unwrap();
+	let mut stacks: Vec<Vec<char>> = Vec::with_capacity(width);
+	let stack_size = crates.lines().count() - 1;
+
+	for _ in 0..width {
+		stacks.push(Vec::with_capacity(stack_size))
+	}
+
+	crates.lines().rev().skip(1).for_each(|f| {
+		let mut crates = f.chars().skip(1).step_by(4);
+		stacks.iter_mut().for_each(|f| {
+			if let Some(c) = crates.next() {
+				if c.is_alphabetic() {
+					f.push(c)
+				}
+			}
+		})
+	});
+	let width = crates
+		.lines()
+		.rev()
+		.next()
+		.unwrap()
+		.split_whitespace()
+		.last()
+		.unwrap()
+		.parse::<usize>()
+		.unwrap();
+	let mut stacks: Vec<Vec<char>> = Vec::with_capacity(width);
+	let stack_size = crates.lines().count() - 1;
+
+	for _ in 0..width {
+		stacks.push(Vec::with_capacity(stack_size))
+	}
+
+	crates.lines().rev().skip(1).for_each(|f| {
+		let mut crates = f.chars().skip(1).step_by(4);
+		stacks.iter_mut().for_each(|f| {
+			if let Some(c) = crates.next() {
+				if c.is_alphabetic() {
+					f.push(c)
+				}
+			}
+		})
+	});
+	stacks
+}
+
+#[derive(Debug)]
+struct Move {
+	amount: usize,
+	from: usize,
+	to: usize,
+}
+
+impl Move {
+	fn from_line(line: &str) -> Self {
+		let mut split = line.split(" ");
+		Self {
+			amount: split.nth(1).unwrap().parse::<usize>().unwrap(),
+			from: split.nth(1).unwrap().parse::<usize>().unwrap(),
+			to: split.nth(1).unwrap().parse::<usize>().unwrap(),
+		}
+	}
+}

src/main.rs

@@ -1,10 +1,8 @@
-use day1;
-use day2;
-use day3;
-use day4;
+
 fn main() {
 	// day1::start();
     // day2::start();
 	// day3::start();
-	day4::start();
+	// day4::start();
+	day5::start();
 }