day 5

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/input.txt

@@ -0,0 +1,511 @@
+[Q] [J]                         [H]
+[G] [S] [Q]     [Z]             [P]
+[P] [F] [M]     [F]     [F]     [S]
+[R] [R] [P] [F] [V]     [D]     [L]
+[L] [W] [W] [D] [W] [S] [V]     [G]
+[C] [H] [H] [T] [D] [L] [M] [B] [B]
+[T] [Q] [B] [S] [L] [C] [B] [J] [N]
+[F] [N] [F] [V] [Q] [Z] [Z] [T] [Q]
+ 1   2   3   4   5   6   7   8   9 
+
+move 1 from 8 to 1
+move 1 from 6 to 1
+move 3 from 7 to 4
+move 3 from 2 to 9
+move 11 from 9 to 3
+move 1 from 6 to 9
+move 15 from 3 to 9
+move 5 from 2 to 3
+move 3 from 7 to 5
+move 6 from 9 to 3
+move 6 from 1 to 6
+move 2 from 3 to 7
+move 5 from 4 to 5
+move 7 from 9 to 4
+move 2 from 9 to 5
+move 10 from 4 to 2
+move 6 from 5 to 4
+move 2 from 7 to 6
+move 10 from 2 to 3
+move 21 from 3 to 5
+move 1 from 3 to 6
+move 3 from 6 to 9
+move 1 from 8 to 9
+move 5 from 4 to 5
+move 4 from 9 to 3
+move 17 from 5 to 1
+move 1 from 6 to 2
+move 16 from 5 to 1
+move 3 from 3 to 6
+move 6 from 6 to 4
+move 1 from 2 to 4
+move 4 from 1 to 2
+move 2 from 6 to 2
+move 28 from 1 to 3
+move 1 from 9 to 7
+move 1 from 8 to 7
+move 1 from 5 to 4
+move 1 from 2 to 6
+move 1 from 3 to 1
+move 3 from 2 to 5
+move 1 from 6 to 3
+move 4 from 4 to 7
+move 5 from 5 to 2
+move 1 from 5 to 6
+move 6 from 1 to 3
+move 1 from 6 to 2
+move 26 from 3 to 6
+move 2 from 7 to 9
+move 4 from 7 to 3
+move 19 from 6 to 3
+move 6 from 2 to 4
+move 5 from 3 to 2
+move 1 from 9 to 7
+move 26 from 3 to 8
+move 6 from 4 to 3
+move 1 from 3 to 8
+move 1 from 6 to 7
+move 6 from 3 to 6
+move 6 from 6 to 4
+move 1 from 9 to 2
+move 2 from 4 to 9
+move 22 from 8 to 2
+move 2 from 6 to 5
+move 1 from 9 to 1
+move 1 from 6 to 5
+move 1 from 7 to 5
+move 3 from 6 to 7
+move 2 from 6 to 1
+move 1 from 1 to 5
+move 3 from 5 to 9
+move 4 from 8 to 4
+move 2 from 1 to 4
+move 18 from 2 to 1
+move 2 from 7 to 8
+move 3 from 9 to 5
+move 8 from 1 to 9
+move 5 from 9 to 3
+move 1 from 9 to 8
+move 2 from 9 to 4
+move 2 from 7 to 8
+move 5 from 5 to 7
+move 1 from 9 to 3
+move 4 from 8 to 4
+move 1 from 7 to 8
+move 4 from 4 to 3
+move 2 from 8 to 3
+move 1 from 8 to 9
+move 2 from 1 to 8
+move 3 from 4 to 5
+move 1 from 8 to 4
+move 1 from 9 to 3
+move 1 from 8 to 5
+move 8 from 1 to 8
+move 11 from 2 to 9
+move 12 from 3 to 5
+move 1 from 3 to 9
+move 1 from 8 to 5
+move 11 from 9 to 3
+move 4 from 5 to 9
+move 3 from 8 to 7
+move 3 from 7 to 8
+move 1 from 5 to 8
+move 7 from 4 to 3
+move 1 from 4 to 5
+move 1 from 2 to 8
+move 3 from 7 to 6
+move 3 from 4 to 8
+move 1 from 7 to 9
+move 2 from 4 to 7
+move 5 from 8 to 1
+move 3 from 6 to 5
+move 2 from 4 to 2
+move 1 from 9 to 4
+move 1 from 8 to 6
+move 1 from 2 to 9
+move 1 from 8 to 5
+move 3 from 8 to 4
+move 3 from 4 to 2
+move 4 from 3 to 9
+move 17 from 5 to 9
+move 9 from 9 to 6
+move 1 from 9 to 3
+move 5 from 6 to 3
+move 3 from 6 to 3
+move 8 from 9 to 5
+move 2 from 8 to 5
+move 1 from 4 to 8
+move 1 from 5 to 3
+move 1 from 8 to 5
+move 3 from 2 to 6
+move 3 from 1 to 4
+move 7 from 5 to 1
+move 1 from 2 to 6
+move 13 from 3 to 6
+move 2 from 7 to 8
+move 13 from 6 to 5
+move 3 from 5 to 7
+move 6 from 5 to 6
+move 1 from 7 to 6
+move 2 from 7 to 3
+move 1 from 6 to 8
+move 13 from 3 to 5
+move 9 from 5 to 9
+move 7 from 5 to 7
+move 17 from 9 to 2
+move 3 from 4 to 7
+move 9 from 2 to 9
+move 10 from 9 to 3
+move 8 from 7 to 8
+move 2 from 5 to 3
+move 4 from 2 to 6
+move 11 from 3 to 9
+move 9 from 6 to 5
+move 5 from 9 to 8
+move 1 from 3 to 1
+move 3 from 9 to 1
+move 2 from 5 to 2
+move 1 from 7 to 9
+move 2 from 9 to 4
+move 2 from 9 to 8
+move 13 from 1 to 8
+move 3 from 8 to 5
+move 27 from 8 to 1
+move 10 from 5 to 9
+move 1 from 7 to 2
+move 2 from 4 to 3
+move 10 from 9 to 6
+move 1 from 8 to 7
+move 15 from 1 to 9
+move 13 from 9 to 5
+move 15 from 5 to 7
+move 5 from 1 to 3
+move 8 from 7 to 1
+move 7 from 7 to 1
+move 16 from 1 to 8
+move 4 from 3 to 9
+move 4 from 1 to 7
+move 4 from 9 to 6
+move 5 from 2 to 7
+move 15 from 8 to 6
+move 1 from 9 to 1
+move 3 from 3 to 4
+move 1 from 9 to 7
+move 1 from 2 to 7
+move 1 from 2 to 7
+move 1 from 8 to 1
+move 3 from 4 to 8
+move 3 from 8 to 1
+move 8 from 6 to 8
+move 7 from 1 to 4
+move 11 from 6 to 8
+move 14 from 6 to 5
+move 13 from 8 to 7
+move 4 from 7 to 5
+move 15 from 7 to 4
+move 6 from 5 to 4
+move 2 from 5 to 9
+move 1 from 5 to 2
+move 3 from 8 to 5
+move 19 from 4 to 7
+move 10 from 5 to 8
+move 2 from 6 to 8
+move 1 from 4 to 8
+move 2 from 7 to 9
+move 9 from 7 to 4
+move 6 from 4 to 6
+move 11 from 4 to 8
+move 2 from 5 to 4
+move 5 from 6 to 4
+move 1 from 6 to 7
+move 3 from 9 to 5
+move 3 from 8 to 5
+move 3 from 7 to 6
+move 11 from 8 to 7
+move 1 from 9 to 5
+move 1 from 6 to 8
+move 1 from 2 to 1
+move 5 from 4 to 9
+move 2 from 4 to 1
+move 2 from 1 to 4
+move 1 from 1 to 9
+move 4 from 5 to 1
+move 1 from 4 to 6
+move 17 from 7 to 5
+move 9 from 8 to 7
+move 6 from 9 to 7
+move 3 from 1 to 9
+move 12 from 7 to 9
+move 12 from 9 to 5
+move 5 from 7 to 9
+move 17 from 5 to 3
+move 7 from 3 to 1
+move 5 from 1 to 5
+move 5 from 9 to 2
+move 4 from 3 to 5
+move 1 from 4 to 8
+move 5 from 2 to 1
+move 22 from 5 to 9
+move 3 from 7 to 6
+move 6 from 6 to 9
+move 2 from 5 to 4
+move 1 from 6 to 3
+move 2 from 4 to 1
+move 3 from 8 to 2
+move 1 from 3 to 4
+move 24 from 9 to 1
+move 4 from 3 to 9
+move 2 from 2 to 9
+move 2 from 3 to 1
+move 1 from 8 to 6
+move 1 from 6 to 9
+move 1 from 8 to 9
+move 2 from 7 to 4
+move 1 from 8 to 3
+move 1 from 4 to 7
+move 3 from 9 to 8
+move 1 from 2 to 1
+move 9 from 9 to 3
+move 1 from 8 to 7
+move 1 from 4 to 3
+move 2 from 9 to 7
+move 1 from 9 to 3
+move 2 from 8 to 4
+move 12 from 3 to 8
+move 2 from 1 to 7
+move 1 from 4 to 3
+move 30 from 1 to 5
+move 6 from 5 to 7
+move 12 from 7 to 2
+move 1 from 3 to 4
+move 2 from 1 to 3
+move 1 from 4 to 9
+move 10 from 5 to 7
+move 10 from 2 to 6
+move 8 from 8 to 3
+move 3 from 1 to 3
+move 5 from 6 to 3
+move 2 from 8 to 5
+move 1 from 9 to 2
+move 2 from 8 to 6
+move 4 from 7 to 2
+move 3 from 2 to 7
+move 2 from 7 to 5
+move 1 from 4 to 9
+move 11 from 3 to 1
+move 7 from 6 to 9
+move 3 from 2 to 3
+move 10 from 1 to 7
+move 14 from 7 to 5
+move 3 from 7 to 6
+move 5 from 9 to 7
+move 29 from 5 to 7
+move 6 from 3 to 9
+move 2 from 9 to 7
+move 15 from 7 to 5
+move 11 from 5 to 6
+move 5 from 9 to 5
+move 10 from 5 to 8
+move 1 from 2 to 4
+move 1 from 8 to 2
+move 2 from 4 to 3
+move 2 from 5 to 9
+move 8 from 8 to 9
+move 11 from 9 to 3
+move 1 from 1 to 8
+move 18 from 7 to 3
+move 1 from 9 to 3
+move 28 from 3 to 5
+move 12 from 6 to 7
+move 1 from 2 to 9
+move 15 from 7 to 2
+move 1 from 8 to 1
+move 10 from 2 to 9
+move 10 from 5 to 3
+move 2 from 2 to 3
+move 18 from 3 to 4
+move 6 from 9 to 4
+move 1 from 1 to 7
+move 1 from 6 to 4
+move 1 from 8 to 2
+move 1 from 9 to 4
+move 2 from 9 to 4
+move 19 from 4 to 3
+move 1 from 7 to 9
+move 1 from 9 to 7
+move 1 from 6 to 8
+move 3 from 2 to 8
+move 2 from 9 to 5
+move 15 from 3 to 1
+move 7 from 5 to 1
+move 3 from 4 to 9
+move 1 from 7 to 2
+move 3 from 3 to 1
+move 6 from 5 to 2
+move 3 from 3 to 9
+move 4 from 9 to 2
+move 5 from 5 to 3
+move 1 from 3 to 5
+move 3 from 5 to 7
+move 3 from 8 to 5
+move 1 from 7 to 5
+move 4 from 5 to 1
+move 4 from 4 to 2
+move 2 from 7 to 8
+move 12 from 1 to 6
+move 1 from 8 to 6
+move 6 from 2 to 3
+move 9 from 3 to 8
+move 1 from 3 to 4
+move 3 from 6 to 1
+move 2 from 9 to 2
+move 1 from 4 to 5
+move 2 from 8 to 3
+move 10 from 2 to 1
+move 2 from 4 to 7
+move 12 from 1 to 4
+move 1 from 5 to 1
+move 7 from 4 to 9
+move 2 from 3 to 2
+move 6 from 9 to 2
+move 1 from 9 to 1
+move 1 from 7 to 8
+move 5 from 6 to 7
+move 3 from 6 to 1
+move 6 from 2 to 3
+move 2 from 4 to 3
+move 1 from 6 to 8
+move 1 from 6 to 7
+move 8 from 3 to 9
+move 2 from 4 to 5
+move 3 from 2 to 4
+move 10 from 8 to 2
+move 22 from 1 to 9
+move 9 from 2 to 4
+move 1 from 1 to 3
+move 1 from 3 to 2
+move 3 from 2 to 4
+move 2 from 7 to 1
+move 14 from 4 to 2
+move 2 from 1 to 8
+move 2 from 4 to 5
+move 4 from 7 to 8
+move 24 from 9 to 6
+move 3 from 5 to 9
+move 1 from 9 to 8
+move 1 from 5 to 2
+move 1 from 6 to 7
+move 6 from 9 to 1
+move 1 from 7 to 3
+move 5 from 8 to 6
+move 9 from 6 to 3
+move 4 from 1 to 4
+move 2 from 1 to 2
+move 11 from 6 to 3
+move 13 from 3 to 2
+move 2 from 9 to 8
+move 8 from 3 to 8
+move 2 from 8 to 5
+move 1 from 7 to 5
+move 3 from 6 to 3
+move 11 from 8 to 5
+move 13 from 2 to 4
+move 10 from 5 to 2
+move 2 from 3 to 4
+move 2 from 5 to 7
+move 15 from 4 to 9
+move 2 from 7 to 4
+move 2 from 4 to 2
+move 2 from 4 to 9
+move 2 from 4 to 2
+move 1 from 3 to 8
+move 1 from 8 to 1
+move 1 from 1 to 2
+move 1 from 6 to 3
+move 7 from 2 to 4
+move 1 from 5 to 3
+move 7 from 9 to 1
+move 7 from 1 to 2
+move 4 from 6 to 9
+move 12 from 9 to 7
+move 6 from 7 to 5
+move 1 from 3 to 5
+move 7 from 4 to 7
+move 3 from 7 to 8
+move 3 from 8 to 6
+move 18 from 2 to 9
+move 7 from 2 to 3
+move 15 from 9 to 4
+move 3 from 3 to 9
+move 1 from 3 to 1
+move 3 from 5 to 4
+move 1 from 1 to 2
+move 1 from 9 to 2
+move 2 from 6 to 2
+move 5 from 7 to 6
+move 5 from 2 to 7
+move 3 from 3 to 4
+move 5 from 5 to 3
+move 6 from 7 to 4
+move 9 from 4 to 2
+move 18 from 4 to 9
+move 6 from 2 to 1
+move 1 from 1 to 9
+move 4 from 7 to 4
+move 7 from 2 to 4
+move 1 from 2 to 8
+move 1 from 4 to 2
+move 4 from 3 to 4
+move 16 from 9 to 5
+move 9 from 9 to 8
+move 1 from 9 to 7
+move 4 from 1 to 2
+move 2 from 5 to 4
+move 10 from 5 to 4
+move 4 from 2 to 1
+move 5 from 1 to 2
+move 1 from 8 to 5
+move 1 from 6 to 5
+move 4 from 8 to 5
+move 2 from 6 to 9
+move 3 from 6 to 2
+move 2 from 9 to 1
+move 1 from 7 to 6
+move 1 from 3 to 8
+move 9 from 5 to 9
+move 4 from 8 to 1
+move 2 from 8 to 2
+move 1 from 5 to 7
+move 9 from 9 to 8
+move 1 from 7 to 5
+move 9 from 8 to 2
+move 6 from 1 to 6
+move 6 from 2 to 6
+move 10 from 2 to 5
+move 5 from 2 to 1
+move 1 from 3 to 5
+move 8 from 5 to 4
+move 5 from 1 to 3
+move 10 from 6 to 8
+move 3 from 6 to 9
+move 4 from 3 to 1
+move 5 from 8 to 2
+move 4 from 5 to 9
+move 1 from 3 to 7
+move 1 from 7 to 3
+move 1 from 8 to 6
+move 1 from 6 to 1
+move 15 from 4 to 8
+move 5 from 9 to 2
+move 1 from 9 to 1
+move 1 from 1 to 3
+move 6 from 4 to 8
+move 12 from 8 to 7
+move 1 from 3 to 5
+move 3 from 1 to 9
+move 13 from 4 to 9
+move 5 from 7 to 2
+move 1 from 5 to 4
+move 8 from 9 to 5
+move 6 from 2 to 5
+move 2 from 5 to 6

day5/sample_input.txt

@@ -0,0 +1,9 @@
+    [D]    
+[N] [C]    
+[Z] [M] [P]
+ 1   2   3 
+
+move 1 from 2 to 1
+move 3 from 1 to 3
+move 2 from 2 to 1
+move 1 from 1 to 2

day5/src/main.rs

@@ -0,0 +1,75 @@
+fn print_stacks(stacks: &Vec<Vec<char>>) {
+    for stack in stacks {
+        println!("{:?}", stack);
+    }
+}
+
+fn stacks_message(stacks: &Vec<Vec<char>>) -> String {
+    stacks.iter().map(|v| {
+        v[v.len() - 1]
+    }).fold(String::new(), |mut s, c| {
+        s.push(c);
+        s
+    })
+}
+
+fn main() {
+    const INPUT: &str = include_str!("../input.txt");
+    let chunks = INPUT.split_once("\n\n").unwrap();
+    
+    let mut stack_lines: Vec<String> = chunks.0.lines().map(|x| -> String {
+        x.to_string() + " "
+    }).collect();
+    stack_lines.pop();
+    let num_stacks = (stack_lines[0].len() + 1) / 4;
+
+    let mut stacks: Vec<Vec<char>> = vec![Vec::<char>::new(); num_stacks];
+
+    for line in stack_lines.iter().rev() {
+        let mut line = line.to_string();
+        line += " ";
+
+        for i in 0..num_stacks {
+            let c = line.chars().nth(i*4 + 1).unwrap();
+            if c.is_whitespace() {
+                continue;
+            }
+            
+            stacks[i].push(c);
+        }
+    }
+
+    let stacks_copy = stacks.clone();
+
+    let move_lines = chunks.1.lines();
+    for line in move_lines {
+        let split: Vec<&str> = line.split(" ").collect();
+        let n: usize = split[1].parse().unwrap();
+        let from = split[3].parse::<usize>().unwrap() - 1;
+        let to = split[5].parse::<usize>().unwrap() - 1;
+
+        for _ in 0..n {
+            let x = stacks[from].pop().unwrap();
+            stacks[to].push(x);
+        }
+    }
+
+    print_stacks(&stacks);
+    println!("Message: {}\n", stacks_message(&stacks));
+
+    let mut stacks = stacks_copy;
+    let move_lines = chunks.1.lines();
+    for line in move_lines {
+        let split: Vec<&str> = line.split(" ").collect();
+        let n: usize = split[1].parse().unwrap();
+        let from = split[3].parse::<usize>().unwrap() - 1;
+        let to = split[5].parse::<usize>().unwrap() - 1;
+
+        let len = stacks[from].len();
+        let mut x: Vec<char> = stacks[from].drain(len-n..len).collect();
+        stacks[to].append(x.as_mut());
+    }
+
+    print_stacks(&stacks);
+    println!("Message: {}", stacks_message(&stacks));
+}