Day 5

res/05/input.txt

@@ -0,0 +1,512 @@
+[P]     [L]         [T]            
+[L]     [M] [G]     [G]     [S]    
+[M]     [Q] [W]     [H] [R] [G]    
+[N]     [F] [M]     [D] [V] [R] [N]
+[W]     [G] [Q] [P] [J] [F] [M] [C]
+[V] [H] [B] [F] [H] [M] [B] [H] [B]
+[B] [Q] [D] [T] [T] [B] [N] [L] [D]
+[H] [M] [N] [Z] [M] [C] [M] [P] [P]
+ 1   2   3   4   5   6   7   8   9 
+
+move 8 from 3 to 2
+move 1 from 9 to 5
+move 5 from 4 to 7
+move 6 from 1 to 4
+move 8 from 6 to 8
+move 8 from 4 to 5
+move 4 from 9 to 5
+move 4 from 7 to 9
+move 7 from 7 to 2
+move 4 from 5 to 2
+move 11 from 8 to 3
+move 3 from 9 to 7
+move 11 from 2 to 8
+move 13 from 8 to 4
+move 11 from 5 to 6
+move 8 from 2 to 4
+move 1 from 5 to 4
+move 1 from 3 to 2
+move 2 from 2 to 1
+move 2 from 8 to 5
+move 3 from 7 to 5
+move 1 from 4 to 7
+move 9 from 6 to 7
+move 1 from 6 to 5
+move 1 from 1 to 4
+move 3 from 1 to 9
+move 15 from 4 to 3
+move 2 from 4 to 1
+move 1 from 1 to 9
+move 3 from 4 to 5
+move 1 from 4 to 1
+move 1 from 7 to 2
+move 1 from 6 to 3
+move 5 from 7 to 1
+move 19 from 3 to 9
+move 7 from 1 to 2
+move 24 from 9 to 7
+move 23 from 7 to 1
+move 1 from 4 to 6
+move 3 from 7 to 3
+move 1 from 6 to 1
+move 6 from 2 to 1
+move 21 from 1 to 9
+move 5 from 3 to 8
+move 2 from 2 to 5
+move 10 from 9 to 5
+move 1 from 2 to 1
+move 5 from 1 to 3
+move 6 from 3 to 4
+move 1 from 2 to 8
+move 3 from 5 to 2
+move 4 from 9 to 3
+move 13 from 5 to 9
+move 2 from 7 to 2
+move 3 from 4 to 7
+move 1 from 7 to 8
+move 5 from 1 to 3
+move 1 from 7 to 5
+move 1 from 8 to 1
+move 2 from 2 to 7
+move 19 from 9 to 2
+move 5 from 2 to 3
+move 7 from 5 to 9
+move 1 from 1 to 9
+move 5 from 9 to 2
+move 4 from 9 to 3
+move 20 from 3 to 9
+move 1 from 3 to 9
+move 3 from 7 to 3
+move 16 from 2 to 3
+move 12 from 3 to 4
+move 2 from 2 to 5
+move 1 from 2 to 4
+move 2 from 4 to 1
+move 4 from 8 to 1
+move 15 from 9 to 3
+move 2 from 5 to 3
+move 3 from 2 to 8
+move 5 from 8 to 5
+move 7 from 3 to 4
+move 2 from 9 to 6
+move 15 from 3 to 1
+move 3 from 1 to 8
+move 3 from 9 to 5
+move 9 from 4 to 1
+move 3 from 3 to 5
+move 2 from 6 to 5
+move 9 from 1 to 3
+move 1 from 9 to 4
+move 1 from 5 to 2
+move 3 from 8 to 5
+move 10 from 1 to 6
+move 12 from 4 to 8
+move 1 from 2 to 7
+move 2 from 5 to 6
+move 1 from 1 to 4
+move 7 from 3 to 6
+move 1 from 7 to 2
+move 2 from 4 to 9
+move 3 from 1 to 7
+move 1 from 9 to 8
+move 1 from 2 to 3
+move 3 from 1 to 7
+move 5 from 8 to 2
+move 5 from 7 to 1
+move 9 from 6 to 8
+move 6 from 6 to 9
+move 8 from 8 to 6
+move 1 from 7 to 4
+move 5 from 2 to 4
+move 7 from 5 to 1
+move 5 from 8 to 9
+move 11 from 6 to 7
+move 9 from 9 to 1
+move 2 from 7 to 5
+move 1 from 9 to 5
+move 1 from 3 to 6
+move 3 from 4 to 6
+move 1 from 8 to 2
+move 2 from 3 to 6
+move 6 from 5 to 2
+move 3 from 5 to 9
+move 3 from 2 to 1
+move 1 from 4 to 3
+move 3 from 2 to 7
+move 1 from 8 to 9
+move 1 from 2 to 8
+move 8 from 7 to 5
+move 1 from 7 to 8
+move 3 from 5 to 6
+move 5 from 5 to 2
+move 1 from 4 to 1
+move 1 from 3 to 2
+move 4 from 1 to 5
+move 4 from 2 to 6
+move 6 from 1 to 2
+move 5 from 9 to 3
+move 2 from 5 to 3
+move 3 from 3 to 6
+move 10 from 6 to 4
+move 4 from 8 to 5
+move 5 from 5 to 1
+move 21 from 1 to 7
+move 3 from 2 to 9
+move 1 from 5 to 2
+move 4 from 2 to 9
+move 8 from 4 to 8
+move 1 from 2 to 1
+move 7 from 8 to 2
+move 2 from 6 to 1
+move 2 from 1 to 5
+move 1 from 1 to 5
+move 4 from 3 to 7
+move 1 from 9 to 3
+move 4 from 6 to 3
+move 1 from 3 to 8
+move 1 from 3 to 4
+move 2 from 2 to 6
+move 2 from 9 to 7
+move 14 from 7 to 8
+move 10 from 8 to 7
+move 3 from 4 to 6
+move 5 from 2 to 3
+move 3 from 9 to 8
+move 3 from 3 to 4
+move 1 from 2 to 4
+move 1 from 9 to 4
+move 1 from 9 to 5
+move 1 from 5 to 2
+move 3 from 5 to 7
+move 1 from 4 to 6
+move 5 from 3 to 8
+move 1 from 6 to 8
+move 5 from 7 to 6
+move 14 from 8 to 5
+move 2 from 6 to 7
+move 18 from 7 to 2
+move 3 from 6 to 1
+move 5 from 5 to 4
+move 5 from 6 to 2
+move 7 from 2 to 1
+move 1 from 8 to 4
+move 1 from 5 to 1
+move 8 from 1 to 9
+move 10 from 4 to 3
+move 8 from 5 to 3
+move 1 from 4 to 3
+move 2 from 1 to 5
+move 1 from 5 to 3
+move 5 from 3 to 1
+move 1 from 1 to 3
+move 5 from 1 to 6
+move 13 from 3 to 1
+move 3 from 9 to 4
+move 2 from 9 to 6
+move 5 from 6 to 5
+move 6 from 5 to 1
+move 7 from 7 to 9
+move 7 from 9 to 6
+move 1 from 9 to 3
+move 1 from 7 to 9
+move 3 from 9 to 1
+move 12 from 2 to 7
+move 7 from 6 to 2
+move 22 from 1 to 7
+move 1 from 6 to 5
+move 4 from 7 to 6
+move 1 from 5 to 6
+move 2 from 4 to 1
+move 1 from 4 to 1
+move 23 from 7 to 9
+move 4 from 6 to 2
+move 4 from 7 to 3
+move 1 from 1 to 9
+move 6 from 2 to 1
+move 1 from 7 to 2
+move 7 from 2 to 8
+move 2 from 3 to 8
+move 3 from 1 to 9
+move 1 from 2 to 8
+move 5 from 8 to 3
+move 3 from 2 to 1
+move 2 from 7 to 8
+move 10 from 9 to 8
+move 4 from 1 to 3
+move 14 from 3 to 4
+move 7 from 4 to 5
+move 1 from 6 to 9
+move 5 from 5 to 8
+move 1 from 6 to 4
+move 6 from 9 to 4
+move 3 from 8 to 4
+move 1 from 5 to 1
+move 3 from 4 to 3
+move 9 from 4 to 3
+move 5 from 3 to 6
+move 5 from 1 to 5
+move 4 from 6 to 2
+move 8 from 9 to 2
+move 2 from 6 to 5
+move 3 from 4 to 7
+move 2 from 2 to 7
+move 2 from 5 to 4
+move 3 from 5 to 9
+move 3 from 4 to 2
+move 10 from 2 to 5
+move 1 from 9 to 8
+move 2 from 2 to 9
+move 3 from 7 to 2
+move 1 from 2 to 9
+move 13 from 5 to 1
+move 2 from 2 to 7
+move 8 from 9 to 2
+move 1 from 4 to 6
+move 1 from 9 to 5
+move 14 from 8 to 4
+move 7 from 4 to 5
+move 4 from 7 to 5
+move 2 from 3 to 8
+move 4 from 1 to 5
+move 2 from 5 to 4
+move 6 from 5 to 6
+move 7 from 2 to 5
+move 1 from 2 to 6
+move 1 from 5 to 2
+move 2 from 2 to 8
+move 2 from 1 to 3
+move 8 from 4 to 7
+move 1 from 4 to 3
+move 6 from 1 to 6
+move 7 from 3 to 9
+move 3 from 7 to 1
+move 2 from 8 to 7
+move 7 from 6 to 9
+move 2 from 3 to 6
+move 6 from 8 to 3
+move 9 from 5 to 3
+move 2 from 7 to 8
+move 2 from 6 to 4
+move 7 from 6 to 9
+move 5 from 3 to 8
+move 10 from 9 to 1
+move 11 from 1 to 8
+move 1 from 3 to 2
+move 4 from 5 to 6
+move 2 from 6 to 2
+move 2 from 7 to 9
+move 3 from 1 to 7
+move 6 from 3 to 9
+move 2 from 7 to 2
+move 2 from 6 to 9
+move 1 from 5 to 9
+move 11 from 9 to 8
+move 1 from 4 to 5
+move 6 from 9 to 8
+move 31 from 8 to 9
+move 1 from 3 to 6
+move 1 from 7 to 1
+move 1 from 4 to 3
+move 1 from 5 to 2
+move 1 from 1 to 8
+move 1 from 8 to 9
+move 1 from 7 to 3
+move 11 from 9 to 6
+move 2 from 3 to 1
+move 2 from 3 to 5
+move 1 from 5 to 4
+move 1 from 4 to 1
+move 6 from 8 to 3
+move 1 from 1 to 4
+move 1 from 4 to 6
+move 2 from 3 to 6
+move 17 from 9 to 2
+move 23 from 2 to 9
+move 14 from 9 to 4
+move 1 from 1 to 7
+move 1 from 5 to 6
+move 8 from 6 to 2
+move 1 from 3 to 2
+move 4 from 9 to 8
+move 5 from 4 to 7
+move 3 from 7 to 2
+move 1 from 1 to 2
+move 2 from 9 to 4
+move 3 from 6 to 9
+move 8 from 4 to 9
+move 2 from 4 to 2
+move 4 from 7 to 2
+move 1 from 7 to 9
+move 4 from 6 to 2
+move 16 from 2 to 1
+move 2 from 3 to 2
+move 18 from 9 to 8
+move 1 from 4 to 2
+move 1 from 6 to 8
+move 1 from 3 to 9
+move 3 from 9 to 5
+move 4 from 9 to 8
+move 6 from 2 to 8
+move 1 from 5 to 1
+move 4 from 2 to 8
+move 1 from 5 to 1
+move 17 from 1 to 4
+move 1 from 5 to 8
+move 10 from 4 to 3
+move 10 from 3 to 1
+move 4 from 4 to 9
+move 1 from 4 to 6
+move 1 from 4 to 8
+move 38 from 8 to 1
+move 27 from 1 to 5
+move 1 from 8 to 2
+move 1 from 6 to 3
+move 1 from 4 to 8
+move 1 from 8 to 4
+move 14 from 1 to 9
+move 1 from 3 to 1
+move 1 from 5 to 1
+move 1 from 2 to 5
+move 2 from 5 to 4
+move 17 from 5 to 8
+move 3 from 4 to 9
+move 2 from 9 to 1
+move 3 from 5 to 7
+move 3 from 7 to 4
+move 2 from 4 to 7
+move 12 from 1 to 4
+move 1 from 7 to 4
+move 1 from 7 to 6
+move 1 from 6 to 9
+move 11 from 4 to 3
+move 1 from 5 to 3
+move 11 from 3 to 9
+move 1 from 3 to 2
+move 3 from 5 to 4
+move 1 from 2 to 4
+move 1 from 5 to 8
+move 13 from 9 to 3
+move 16 from 9 to 1
+move 4 from 8 to 9
+move 2 from 1 to 4
+move 1 from 9 to 1
+move 1 from 9 to 7
+move 1 from 7 to 2
+move 6 from 8 to 3
+move 8 from 4 to 2
+move 4 from 9 to 6
+move 3 from 2 to 3
+move 3 from 6 to 1
+move 3 from 8 to 6
+move 1 from 6 to 8
+move 3 from 6 to 4
+move 11 from 3 to 5
+move 4 from 8 to 2
+move 6 from 3 to 5
+move 3 from 5 to 1
+move 2 from 8 to 3
+move 14 from 5 to 3
+move 4 from 3 to 4
+move 6 from 3 to 5
+move 3 from 2 to 9
+move 4 from 1 to 8
+move 3 from 9 to 6
+move 2 from 6 to 9
+move 6 from 4 to 3
+move 15 from 1 to 4
+move 1 from 6 to 7
+move 5 from 5 to 1
+move 11 from 3 to 1
+move 2 from 9 to 7
+move 1 from 5 to 6
+move 2 from 1 to 3
+move 7 from 2 to 6
+move 4 from 8 to 1
+move 8 from 4 to 2
+move 3 from 6 to 4
+move 5 from 1 to 4
+move 17 from 4 to 8
+move 3 from 3 to 7
+move 4 from 3 to 4
+move 4 from 4 to 2
+move 9 from 8 to 7
+move 1 from 3 to 8
+move 10 from 2 to 4
+move 1 from 6 to 2
+move 2 from 8 to 4
+move 2 from 6 to 9
+move 2 from 6 to 2
+move 1 from 2 to 3
+move 3 from 1 to 4
+move 1 from 3 to 2
+move 1 from 9 to 3
+move 1 from 9 to 7
+move 4 from 8 to 4
+move 10 from 4 to 8
+move 5 from 4 to 3
+move 1 from 2 to 8
+move 5 from 3 to 7
+move 3 from 7 to 8
+move 3 from 4 to 3
+move 8 from 7 to 2
+move 8 from 7 to 8
+move 1 from 3 to 2
+move 3 from 2 to 8
+move 9 from 2 to 5
+move 12 from 1 to 7
+move 21 from 8 to 3
+move 5 from 8 to 6
+move 8 from 7 to 5
+move 6 from 7 to 4
+move 12 from 5 to 7
+move 1 from 8 to 5
+move 2 from 4 to 2
+move 1 from 7 to 6
+move 14 from 3 to 8
+move 5 from 6 to 2
+move 7 from 2 to 6
+move 6 from 8 to 4
+move 11 from 7 to 4
+move 8 from 3 to 7
+move 4 from 5 to 7
+move 9 from 8 to 2
+move 6 from 4 to 1
+move 2 from 5 to 2
+move 1 from 7 to 2
+move 11 from 2 to 3
+move 1 from 2 to 1
+move 7 from 4 to 1
+move 5 from 6 to 8
+move 1 from 2 to 3
+move 2 from 8 to 7
+move 14 from 3 to 7
+move 15 from 7 to 6
+move 4 from 4 to 6
+move 2 from 8 to 3
+move 12 from 1 to 3
+move 1 from 8 to 2
+move 1 from 2 to 3
+move 1 from 3 to 9
+move 1 from 9 to 7
+move 1 from 1 to 4
+move 18 from 6 to 8
+move 3 from 3 to 2
+move 17 from 8 to 3
+move 3 from 7 to 6
+move 3 from 2 to 6
+move 25 from 3 to 7
+move 2 from 4 to 1
+move 9 from 6 to 5
+move 2 from 3 to 1
+move 1 from 3 to 9
+move 5 from 5 to 2
+move 1 from 8 to 3
+move 2 from 4 to 7
+move 1 from 9 to 4
+move 1 from 6 to 7
+move 2 from 5 to 2
+move 2 from 4 to 8
+move 2 from 5 to 8
+move 5 from 7 to 9
+move 27 from 7 to 5
+move 2 from 9 to 6

src/d05.rs

@@ -0,0 +1,108 @@
+use std::fs;
+
+pub fn d05() {
+    let path = "res/05/input.txt";
+
+    let contents = fs::read_to_string(path).expect("I/O error, wrong path?");
+
+    let (stacks_str, moves_str) = contents.split_at(contents.find("\n\n").unwrap());
+
+    // Parse stacks
+    let stacks_lines: Vec<&str> = stacks_str.split("\n").collect();
+    let stacks_max_height = stacks_lines.len() - 1;
+    let stacks_num = (stacks_lines[0].len() + 1) / 4;
+    let mut stacks: Vec<Stack> = (0..stacks_num).map(|_| Stack::new()).collect();
+    (0..stacks_max_height).rev().for_each(|i| {
+        for j in 0..stacks_num {
+            let chr = stacks_lines[i].chars().collect::<Vec<char>>()[j * 4 + 1];
+            if chr != ' ' {
+                stacks[j].push(chr);
+            }
+        }
+    });
+    // Copy stacks for task 2
+    let mut stacks2: Vec<Stack> = stacks
+        .iter()
+        .map(|stack| Stack {
+            stack: stack.stack.clone(),
+        })
+        .collect();
+
+    // Parse moves
+    let moves: Vec<Move> = moves_str
+        .split("\n")
+        .filter(|line| *line != "")
+        .map(|line| {
+            let words: Vec<&str> = line.split(" ").collect();
+            let amount = words[1].parse::<i32>().unwrap();
+            let from = words[3].parse::<i32>().unwrap();
+            let to = words[5].parse::<i32>().unwrap();
+
+            Move::new(from, to, amount)
+        })
+        .collect();
+
+    // Run moves for task 1
+    moves.iter().for_each(|mv| {
+        for _ in 0..mv.amount {
+            let chr = stacks[(mv.from - 1) as usize].pop();
+            stacks[(mv.to - 1) as usize].push(chr);
+        }
+    });
+
+    let res: String = stacks
+        .iter()
+        .map(|stack| stack.stack.last().unwrap())
+        .collect();
+    println!("Result 1: {}", res);
+
+    // Run moves for task 2
+    moves.iter().for_each(|mv| {
+        let mut chrs = Vec::<char>::new();
+        for _ in 0..mv.amount {
+            chrs.push(stacks2[(mv.from - 1) as usize].pop());
+        }
+        chrs.iter().rev().for_each(|c| {
+            stacks2[(mv.to - 1) as usize].push(*c);
+        });
+    });
+
+    let res: String = stacks2
+        .iter()
+        .map(|stack| stack.stack.last().unwrap())
+        .collect();
+    println!("Result 2: {}", res);
+}
+
+struct Stack {
+    stack: Vec<char>,
+}
+
+impl Stack {
+    // stack order: 1st element is at the bottom
+    pub fn new() -> Self {
+        Stack {
+            stack: Vec::<char>::new(),
+        }
+    }
+
+    pub fn push(&mut self, chr: char) {
+        self.stack.push(chr)
+    }
+
+    pub fn pop(&mut self) -> char {
+        self.stack.pop().unwrap()
+    }
+}
+
+struct Move {
+    pub from: i32,
+    pub to: i32,
+    pub amount: i32,
+}
+
+impl Move {
+    pub fn new(from: i32, to: i32, amount: i32) -> Self {
+        Move { from, to, amount }
+    }
+}

src/main.rs

@@ -1,5 +1,5 @@
-mod d04;
+mod d05;
 
 fn main() {
-    d04::d04();
+    d05::d05();
 }