switched to workspaces.

This should let me make a cross-day library.

days/day05/src/input.txt

@@ -0,0 +1,514 @@
+    [S] [C]         [Z]            
+[F] [J] [P]         [T]     [N]    
+[G] [H] [G] [Q]     [G]     [D]    
+[V] [V] [D] [G] [F] [D]     [V]    
+[R] [B] [F] [N] [N] [Q] [L] [S]    
+[J] [M] [M] [P] [H] [V] [B] [B] [D]
+[L] [P] [H] [D] [L] [F] [D] [J] [L]
+[D] [T] [V] [M] [J] [N] [F] [M] [G]
+ 1   2   3   4   5   6   7   8   9 
+
+move 3 from 4 to 6
+move 1 from 5 to 8
+move 3 from 7 to 3
+move 4 from 5 to 7
+move 1 from 7 to 8
+move 3 from 9 to 4
+move 2 from 8 to 2
+move 4 from 4 to 5
+move 2 from 5 to 1
+move 2 from 5 to 6
+move 7 from 8 to 1
+move 9 from 3 to 9
+move 11 from 6 to 5
+move 2 from 6 to 7
+move 12 from 1 to 4
+move 10 from 2 to 9
+move 2 from 3 to 9
+move 1 from 7 to 5
+move 4 from 7 to 6
+move 2 from 6 to 1
+move 5 from 1 to 6
+move 10 from 9 to 1
+move 9 from 9 to 8
+move 13 from 4 to 3
+move 7 from 6 to 2
+move 2 from 8 to 5
+move 9 from 3 to 9
+move 8 from 9 to 8
+move 4 from 8 to 4
+move 1 from 7 to 5
+move 3 from 9 to 1
+move 7 from 2 to 1
+move 1 from 3 to 1
+move 1 from 3 to 6
+move 1 from 6 to 1
+move 2 from 3 to 6
+move 5 from 4 to 1
+move 1 from 6 to 1
+move 3 from 8 to 7
+move 8 from 8 to 4
+move 3 from 5 to 4
+move 1 from 6 to 7
+move 1 from 5 to 8
+move 4 from 5 to 2
+move 7 from 5 to 8
+move 3 from 2 to 7
+move 7 from 4 to 8
+move 11 from 8 to 4
+move 15 from 4 to 1
+move 25 from 1 to 6
+move 4 from 8 to 7
+move 1 from 2 to 4
+move 11 from 6 to 4
+move 12 from 6 to 3
+move 1 from 1 to 9
+move 1 from 9 to 8
+move 16 from 1 to 3
+move 1 from 8 to 7
+move 12 from 4 to 6
+move 9 from 6 to 5
+move 3 from 6 to 5
+move 6 from 7 to 5
+move 3 from 3 to 5
+move 2 from 6 to 3
+move 11 from 5 to 8
+move 2 from 8 to 3
+move 2 from 1 to 4
+move 7 from 3 to 1
+move 2 from 4 to 6
+move 2 from 6 to 2
+move 5 from 7 to 3
+move 1 from 1 to 6
+move 1 from 1 to 8
+move 2 from 2 to 5
+move 1 from 7 to 4
+move 1 from 1 to 2
+move 10 from 3 to 5
+move 11 from 3 to 6
+move 1 from 4 to 9
+move 1 from 9 to 4
+move 1 from 4 to 2
+move 2 from 5 to 9
+move 2 from 2 to 8
+move 2 from 1 to 6
+move 2 from 1 to 2
+move 2 from 3 to 6
+move 3 from 8 to 1
+move 3 from 1 to 4
+move 7 from 8 to 3
+move 2 from 9 to 5
+move 2 from 4 to 9
+move 7 from 5 to 6
+move 2 from 8 to 6
+move 1 from 4 to 8
+move 2 from 2 to 4
+move 21 from 6 to 3
+move 10 from 5 to 7
+move 7 from 7 to 6
+move 1 from 9 to 3
+move 1 from 4 to 9
+move 1 from 9 to 4
+move 1 from 8 to 4
+move 8 from 6 to 4
+move 1 from 4 to 5
+move 1 from 5 to 8
+move 4 from 3 to 6
+move 1 from 8 to 2
+move 1 from 4 to 2
+move 2 from 7 to 3
+move 2 from 2 to 7
+move 22 from 3 to 5
+move 4 from 6 to 2
+move 2 from 6 to 9
+move 7 from 3 to 9
+move 6 from 9 to 1
+move 18 from 5 to 3
+move 2 from 5 to 4
+move 20 from 3 to 5
+move 3 from 7 to 3
+move 5 from 1 to 2
+move 11 from 5 to 7
+move 1 from 1 to 7
+move 3 from 9 to 3
+move 16 from 5 to 8
+move 7 from 8 to 7
+move 1 from 9 to 2
+move 8 from 2 to 3
+move 2 from 2 to 4
+move 3 from 3 to 1
+move 9 from 3 to 8
+move 1 from 6 to 3
+move 9 from 7 to 3
+move 3 from 1 to 8
+move 1 from 7 to 9
+move 1 from 9 to 4
+move 1 from 7 to 5
+move 10 from 4 to 5
+move 2 from 4 to 2
+move 19 from 8 to 5
+move 1 from 8 to 3
+move 4 from 3 to 5
+move 2 from 4 to 8
+move 4 from 7 to 8
+move 4 from 3 to 9
+move 4 from 7 to 6
+move 2 from 2 to 5
+move 2 from 3 to 2
+move 6 from 8 to 7
+move 1 from 8 to 4
+move 2 from 6 to 4
+move 3 from 4 to 8
+move 3 from 9 to 2
+move 4 from 7 to 8
+move 28 from 5 to 8
+move 16 from 8 to 4
+move 11 from 8 to 4
+move 3 from 3 to 4
+move 7 from 5 to 8
+move 13 from 8 to 7
+move 1 from 5 to 6
+move 1 from 6 to 7
+move 1 from 9 to 2
+move 2 from 6 to 2
+move 12 from 4 to 9
+move 4 from 4 to 1
+move 2 from 9 to 8
+move 4 from 8 to 3
+move 3 from 4 to 5
+move 4 from 4 to 1
+move 4 from 4 to 7
+move 3 from 7 to 9
+move 5 from 9 to 7
+move 7 from 2 to 3
+move 1 from 5 to 7
+move 8 from 1 to 5
+move 1 from 2 to 4
+move 11 from 3 to 1
+move 10 from 5 to 3
+move 3 from 9 to 1
+move 3 from 9 to 6
+move 5 from 1 to 6
+move 7 from 6 to 9
+move 8 from 9 to 7
+move 9 from 3 to 4
+move 1 from 6 to 9
+move 8 from 7 to 1
+move 9 from 4 to 2
+move 2 from 1 to 6
+move 3 from 2 to 6
+move 4 from 4 to 6
+move 2 from 9 to 8
+move 2 from 1 to 2
+move 1 from 3 to 8
+move 2 from 8 to 4
+move 1 from 6 to 8
+move 11 from 1 to 6
+move 1 from 1 to 5
+move 3 from 2 to 9
+move 2 from 9 to 3
+move 1 from 1 to 7
+move 2 from 4 to 9
+move 4 from 2 to 9
+move 2 from 8 to 5
+move 10 from 6 to 1
+move 2 from 5 to 6
+move 5 from 9 to 8
+move 5 from 8 to 7
+move 1 from 2 to 1
+move 7 from 1 to 2
+move 2 from 9 to 4
+move 1 from 3 to 5
+move 15 from 7 to 2
+move 8 from 6 to 3
+move 2 from 4 to 3
+move 2 from 6 to 4
+move 4 from 7 to 1
+move 4 from 7 to 5
+move 1 from 6 to 4
+move 3 from 1 to 7
+move 5 from 7 to 6
+move 4 from 7 to 5
+move 18 from 2 to 4
+move 5 from 6 to 4
+move 4 from 1 to 2
+move 8 from 3 to 8
+move 2 from 8 to 4
+move 2 from 3 to 7
+move 1 from 5 to 7
+move 3 from 8 to 4
+move 2 from 7 to 2
+move 1 from 3 to 8
+move 9 from 2 to 6
+move 2 from 8 to 6
+move 1 from 7 to 3
+move 1 from 3 to 5
+move 3 from 6 to 8
+move 1 from 8 to 5
+move 1 from 5 to 9
+move 1 from 1 to 2
+move 5 from 4 to 6
+move 10 from 6 to 2
+move 5 from 2 to 6
+move 5 from 6 to 4
+move 1 from 6 to 3
+move 6 from 4 to 6
+move 3 from 2 to 6
+move 2 from 2 to 3
+move 11 from 4 to 6
+move 1 from 9 to 5
+move 4 from 6 to 7
+move 1 from 4 to 3
+move 12 from 4 to 3
+move 1 from 8 to 6
+move 9 from 5 to 7
+move 1 from 5 to 2
+move 1 from 8 to 5
+move 1 from 4 to 9
+move 9 from 7 to 9
+move 1 from 3 to 4
+move 2 from 3 to 6
+move 2 from 5 to 6
+move 2 from 8 to 5
+move 11 from 3 to 4
+move 2 from 3 to 1
+move 1 from 2 to 3
+move 1 from 3 to 8
+move 3 from 7 to 9
+move 5 from 4 to 2
+move 2 from 5 to 8
+move 6 from 4 to 2
+move 1 from 1 to 3
+move 12 from 9 to 1
+move 6 from 1 to 6
+move 1 from 8 to 4
+move 1 from 8 to 3
+move 5 from 2 to 7
+move 2 from 3 to 9
+move 5 from 7 to 1
+move 1 from 7 to 5
+move 2 from 9 to 1
+move 14 from 1 to 7
+move 2 from 4 to 7
+move 7 from 2 to 4
+move 1 from 2 to 1
+move 1 from 1 to 3
+move 1 from 5 to 4
+move 1 from 9 to 6
+move 16 from 6 to 5
+move 2 from 5 to 4
+move 12 from 6 to 8
+move 10 from 4 to 8
+move 9 from 7 to 3
+move 4 from 7 to 6
+move 11 from 5 to 8
+move 2 from 5 to 2
+move 14 from 8 to 9
+move 1 from 5 to 1
+move 3 from 9 to 4
+move 2 from 2 to 1
+move 7 from 8 to 3
+move 6 from 3 to 5
+move 8 from 9 to 8
+move 1 from 6 to 1
+move 1 from 4 to 2
+move 4 from 3 to 8
+move 1 from 7 to 2
+move 3 from 1 to 5
+move 2 from 5 to 7
+move 3 from 9 to 2
+move 1 from 1 to 8
+move 5 from 5 to 4
+move 2 from 7 to 8
+move 4 from 2 to 5
+move 1 from 2 to 4
+move 2 from 7 to 8
+move 4 from 6 to 2
+move 6 from 5 to 3
+move 1 from 6 to 5
+move 1 from 5 to 3
+move 1 from 3 to 8
+move 8 from 8 to 3
+move 9 from 8 to 5
+move 9 from 8 to 2
+move 2 from 8 to 9
+move 2 from 3 to 8
+move 5 from 5 to 8
+move 1 from 3 to 7
+move 2 from 9 to 5
+move 7 from 2 to 4
+move 14 from 4 to 6
+move 2 from 2 to 7
+move 1 from 7 to 3
+move 1 from 7 to 9
+move 3 from 5 to 2
+move 1 from 7 to 1
+move 3 from 2 to 4
+move 7 from 8 to 2
+move 3 from 6 to 1
+move 17 from 3 to 1
+move 2 from 8 to 3
+move 6 from 2 to 7
+move 2 from 7 to 9
+move 3 from 6 to 8
+move 2 from 8 to 6
+move 4 from 2 to 1
+move 3 from 4 to 7
+move 1 from 8 to 7
+move 1 from 8 to 9
+move 1 from 4 to 2
+move 3 from 5 to 7
+move 2 from 3 to 1
+move 2 from 3 to 5
+move 5 from 7 to 4
+move 5 from 7 to 3
+move 1 from 4 to 8
+move 3 from 3 to 1
+move 6 from 1 to 3
+move 1 from 7 to 5
+move 2 from 9 to 2
+move 3 from 5 to 8
+move 1 from 8 to 1
+move 8 from 3 to 5
+move 1 from 4 to 9
+move 3 from 6 to 5
+move 3 from 6 to 3
+move 2 from 3 to 7
+move 1 from 4 to 7
+move 3 from 6 to 4
+move 2 from 7 to 2
+move 1 from 7 to 8
+move 2 from 5 to 4
+move 1 from 6 to 1
+move 7 from 4 to 7
+move 7 from 5 to 2
+move 10 from 2 to 3
+move 3 from 2 to 6
+move 3 from 8 to 1
+move 1 from 8 to 7
+move 2 from 6 to 3
+move 1 from 6 to 9
+move 4 from 7 to 5
+move 16 from 1 to 5
+move 1 from 9 to 7
+move 3 from 7 to 6
+move 11 from 5 to 6
+move 2 from 7 to 9
+move 12 from 6 to 4
+move 2 from 6 to 9
+move 6 from 3 to 2
+move 1 from 5 to 7
+move 5 from 9 to 5
+move 1 from 9 to 6
+move 4 from 3 to 7
+move 1 from 4 to 2
+move 7 from 2 to 5
+move 3 from 5 to 2
+move 6 from 5 to 6
+move 3 from 2 to 6
+move 9 from 6 to 8
+move 5 from 5 to 9
+move 5 from 7 to 1
+move 4 from 1 to 9
+move 2 from 9 to 4
+move 1 from 6 to 7
+move 9 from 4 to 1
+move 7 from 5 to 9
+move 18 from 1 to 3
+move 9 from 9 to 5
+move 8 from 8 to 2
+move 1 from 2 to 5
+move 4 from 2 to 3
+move 4 from 9 to 6
+move 1 from 4 to 8
+move 2 from 5 to 7
+move 2 from 9 to 2
+move 10 from 3 to 9
+move 5 from 5 to 9
+move 1 from 7 to 2
+move 2 from 8 to 7
+move 2 from 3 to 5
+move 2 from 9 to 1
+move 2 from 7 to 3
+move 1 from 2 to 1
+move 5 from 5 to 8
+move 1 from 2 to 1
+move 15 from 3 to 6
+move 1 from 7 to 6
+move 10 from 6 to 5
+move 1 from 7 to 8
+move 4 from 1 to 6
+move 1 from 8 to 3
+move 2 from 1 to 5
+move 3 from 8 to 1
+move 1 from 4 to 6
+move 1 from 4 to 2
+move 4 from 9 to 7
+move 6 from 5 to 7
+move 3 from 1 to 9
+move 10 from 6 to 8
+move 2 from 1 to 3
+move 8 from 7 to 9
+move 1 from 9 to 6
+move 2 from 7 to 9
+move 3 from 3 to 5
+move 1 from 2 to 6
+move 2 from 6 to 5
+move 5 from 9 to 4
+move 4 from 8 to 2
+move 1 from 1 to 3
+move 4 from 5 to 9
+move 3 from 6 to 1
+move 2 from 1 to 5
+move 3 from 5 to 2
+move 8 from 8 to 3
+move 11 from 9 to 4
+move 13 from 4 to 8
+move 2 from 9 to 2
+move 2 from 3 to 1
+move 1 from 4 to 1
+move 1 from 3 to 8
+move 2 from 6 to 9
+move 7 from 8 to 1
+move 3 from 2 to 5
+move 7 from 2 to 5
+move 3 from 4 to 6
+move 4 from 9 to 2
+move 2 from 3 to 5
+move 9 from 5 to 6
+move 5 from 2 to 7
+move 2 from 9 to 2
+move 2 from 9 to 7
+move 12 from 6 to 8
+move 5 from 5 to 7
+move 1 from 9 to 8
+move 3 from 1 to 6
+move 5 from 5 to 8
+move 6 from 1 to 9
+move 2 from 1 to 5
+move 1 from 6 to 9
+move 5 from 9 to 7
+move 2 from 5 to 8
+move 11 from 7 to 6
+move 20 from 8 to 1
+move 2 from 9 to 8
+move 4 from 7 to 6
+move 6 from 8 to 3
+move 13 from 6 to 9
+move 4 from 3 to 2
+move 4 from 6 to 3
+move 2 from 3 to 6
+move 5 from 9 to 8
+move 2 from 7 to 1
+move 2 from 6 to 9
+move 6 from 8 to 3
+move 6 from 3 to 6
+move 5 from 2 to 9
+move 22 from 1 to 3
+move 3 from 2 to 1
+move 5 from 9 to 3
+move 1 from 1 to 6
+move 3 from 6 to 2
+move 1 from 2 to 4
+move 33 from 3 to 5
+move 1 from 8 to 7

days/day05/src/main.rs

@@ -0,0 +1,14 @@
+mod part1;
+mod part2;
+mod utilities;
+
+fn main() {
+    let _input = include_str!("./input.txt");
+    let _structured_input = utilities::parse(_input);
+
+    println!("Part One");
+    println!("Result: {:?}", part1::part1(&_structured_input));
+
+    println!("Part Two");
+    println!("Result: {:?}", part2::part2(&_structured_input));
+}

days/day05/src/part1.rs

@@ -0,0 +1,48 @@
+use crate::utilities::*;
+
+pub fn part1(input: &(WorkArea, Vec<Move>)) -> Vec<char> {
+    let (mut work_area, moves) = input.to_owned();
+    for r#move in moves {
+        work_area.apply_move_cratemover9000(&r#move)
+    }
+    work_area
+        .get_stacks()
+        .iter()
+        .map(|stack| stack.last().unwrap().to_owned())
+        .collect()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_part1() {
+        let input = (
+            WorkArea::new(vec![vec!['Z', 'N'], vec!['M', 'C', 'D'], vec!['P']]),
+            vec![
+                Move {
+                    to: 1,
+                    from: 2,
+                    number: 1,
+                },
+                Move {
+                    to: 3,
+                    from: 1,
+                    number: 3,
+                },
+                Move {
+                    to: 1,
+                    from: 2,
+                    number: 2,
+                },
+                Move {
+                    to: 2,
+                    from: 1,
+                    number: 1,
+                },
+            ],
+        );
+        assert_eq!(part1(&input), vec!['C', 'M', 'Z']);
+    }
+}

days/day05/src/part2.rs

@@ -0,0 +1,48 @@
+use crate::utilities::*;
+
+pub fn part2(input: &(WorkArea, Vec<Move>)) -> Vec<char> {
+    let (mut work_area, moves) = input.to_owned();
+    for r#move in moves {
+        work_area.apply_move_cratemover9001(&r#move)
+    }
+    work_area
+        .get_stacks()
+        .iter()
+        .map(|stack| stack.last().unwrap().to_owned())
+        .collect()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_part2() {
+        let input = (
+            WorkArea::new(vec![vec!['Z', 'N'], vec!['M', 'C', 'D'], vec!['P']]),
+            vec![
+                Move {
+                    to: 1,
+                    from: 2,
+                    number: 1,
+                },
+                Move {
+                    to: 3,
+                    from: 1,
+                    number: 3,
+                },
+                Move {
+                    to: 1,
+                    from: 2,
+                    number: 2,
+                },
+                Move {
+                    to: 2,
+                    from: 1,
+                    number: 1,
+                },
+            ],
+        );
+        assert_eq!(part2(&input), vec!['M', 'C', 'D']);
+    }
+}

days/day05/src/utilities.rs

@@ -0,0 +1,144 @@
+use once_cell::sync::Lazy;
+use regex::Regex;
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub struct Move {
+    pub to: usize,
+    pub from: usize,
+    pub number: u8,
+}
+
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub struct WorkArea {
+    stacks: Vec<Vec<char>>,
+}
+
+impl WorkArea {
+    pub fn new(stacks: Vec<Vec<char>>) -> Self {
+        Self { stacks }
+    }
+    pub fn apply_move_cratemover9000(&mut self, action: &Move) {
+        for _ in 0..action.number {
+            let cargo = self.stacks.get_mut(action.from - 1).unwrap().pop().unwrap();
+            self.stacks.get_mut(action.to - 1).unwrap().push(cargo);
+        }
+    }
+    pub fn apply_move_cratemover9001(&mut self, action: &Move) {
+        let mut crane_holder: Vec<char> = Vec::new();
+        for _ in 0..action.number {
+            let cargo = self.stacks.get_mut(action.from - 1).unwrap().pop().unwrap();
+            crane_holder.push(cargo);
+        }
+        for cargo in crane_holder.iter().rev() {
+            self.stacks.get_mut(action.to - 1).unwrap().push(*cargo);
+        }
+    }
+    pub fn get_stacks(&self) -> &Vec<Vec<char>> {
+        &self.stacks
+    }
+}
+
+pub fn parse(input: &str) -> (WorkArea, Vec<Move>) {
+    let mut input = input.split("\n\n");
+    let work_area = parse_work_area(input.next().unwrap());
+    let moves = parse_moves(input.next().unwrap());
+    (work_area, moves)
+}
+
+pub fn parse_work_area(input: &str) -> WorkArea {
+    //decode those bottom index numbers
+    let index_row = input.lines().rev().next().unwrap();
+    //some ascii math and array math to get the second to last char and convert it into a number.
+    let index_max: usize = (index_row.as_bytes()[index_row.len() - 2] - b'0') as usize;
+    //initalize the work area:
+    let mut work_area: Vec<Vec<char>> = Vec::new();
+    for _ in 0..index_max {
+        work_area.push(Vec::new())
+    }
+
+    //now parse the rest
+    for line in input.lines().rev() {
+        for (y, cargo_crate) in line.as_bytes().chunks(4).enumerate() {
+            let cargo = cargo_crate[1] as char;
+            //easiest way to filter out that last line is just to filter out digits.
+            if cargo != ' ' && !cargo.is_ascii_digit() {
+                work_area.get_mut(y).unwrap().push(cargo)
+            }
+        }
+    }
+
+    WorkArea::new(work_area)
+}
+
+pub fn parse_moves(input: &str) -> Vec<Move> {
+    static PARSE_MOVES_REGEX: Lazy<Regex> =
+        Lazy::new(|| Regex::new(r"^move (\d+) from (\d+) to (\d+)$").unwrap());
+    input
+        .lines()
+        .map(|line| {
+            let cap = PARSE_MOVES_REGEX.captures(line).unwrap();
+            Move {
+                to: cap.get(3).unwrap().as_str().parse().unwrap(),
+                from: cap.get(2).unwrap().as_str().parse().unwrap(),
+                number: cap.get(1).unwrap().as_str().parse().unwrap(),
+            }
+        })
+        .collect()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse_work_area() {
+        let input = "    [D]    
+[N] [C]    
+[Z] [M] [P]
+ 1   2   3 ";
+        assert_eq!(
+            parse_work_area(input),
+            WorkArea::new(vec![vec!['Z', 'N'], vec!['M', 'C', 'D'], vec!['P'],],)
+        )
+    }
+
+    #[test]
+    fn test_parse() {
+        let input = "    [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";
+        assert_eq!(
+            parse(input),
+            (
+                WorkArea::new(vec![vec!['Z', 'N'], vec!['M', 'C', 'D'], vec!['P'],],),
+                vec![
+                    Move {
+                        to: 1,
+                        from: 2,
+                        number: 1
+                    },
+                    Move {
+                        to: 3,
+                        from: 1,
+                        number: 3
+                    },
+                    Move {
+                        to: 1,
+                        from: 2,
+                        number: 2
+                    },
+                    Move {
+                        to: 2,
+                        from: 1,
+                        number: 1
+                    },
+                ]
+            )
+        );
+    }
+}