Days 4 and 5 and rust. This is really REALLY shitty

rust/4/part1.rs

@@ -0,0 +1,48 @@
+use std::{
+    fs::File,
+    io::{BufRead, BufReader},
+};
+
+struct Pair {
+    low: i32,
+    high: i32,
+}
+
+impl Pair {
+    fn new(input: &str) -> Self {
+        let tmpvec = input
+            .split('-')
+            .map(|val| val.parse::<i32>().unwrap())
+            .collect::<Vec<_>>();
+        return Self {
+            low: tmpvec[0],
+            high: tmpvec[1],
+        };
+    }
+
+    fn contains_fully(self: &Self, other: &Self) -> bool {
+        self.low <= other.low && self.high >= other.high
+    }
+}
+
+fn main() -> () {
+    let path = "input.txt";
+
+    let input = File::open(path).unwrap();
+    let buf = BufReader::new(input);
+
+    let score: i32 = buf
+        .lines()
+        .map(|line| {
+            let line = line.unwrap();
+            let pairs = line
+                .split(',')
+                .map(|pair_str| Pair::new(pair_str))
+                .collect::<Vec<_>>();
+            pairs[0].contains_fully(&pairs[1]) || pairs[1].contains_fully(&pairs[0])
+        })
+        .map(|b| if b { 1 } else { 0 })
+        .sum();
+
+    println!("{}", score);
+}

rust/4/part2.rs

@@ -0,0 +1,51 @@
+use std::{
+    fs::File,
+    io::{BufRead, BufReader},
+};
+
+struct Pair {
+    low: i32,
+    high: i32,
+}
+
+impl Pair {
+    fn new(input: &str) -> Self {
+        let tmpvec = input
+            .split('-')
+            .map(|val| val.parse::<i32>().unwrap())
+            .collect::<Vec<_>>();
+        return Self {
+            low: tmpvec[0],
+            high: tmpvec[1],
+        };
+    }
+
+    fn contains_fully(self: &Self, other: &Self) -> bool {
+        self.low <= other.low && self.high >= other.high
+    }
+    fn contains_partially(self: &Self, other: &Self) -> bool {
+        self.low <= other.high && self.high >= other.low
+    }
+}
+
+fn main() -> () {
+    let path = "input.txt";
+
+    let input = File::open(path).unwrap();
+    let buf = BufReader::new(input);
+
+    let score: i32 = buf
+        .lines()
+        .map(|line| {
+            let line = line.unwrap();
+            let pairs = line
+                .split(',')
+                .map(|pair_str| Pair::new(pair_str))
+                .collect::<Vec<_>>();
+            pairs[0].contains_partially(&pairs[1])
+        })
+        .map(|b| if b { 1 } else { 0 })
+        .sum();
+
+    println!("{}", score);
+}

rust/5/input.txt

@@ -0,0 +1,512 @@
+[T]     [D]         [L]            
+[R]     [S] [G]     [P]         [H]
+[G]     [H] [W]     [R] [L]     [P]
+[W]     [G] [F] [H] [S] [M]     [L]
+[Q]     [V] [B] [J] [H] [N] [R] [N]
+[M] [R] [R] [P] [M] [T] [H] [Q] [C]
+[F] [F] [Z] [H] [S] [Z] [T] [D] [S]
+[P] [H] [P] [Q] [P] [M] [P] [F] [D]
+ 1   2   3   4   5   6   7   8   9 
+
+move 3 from 8 to 9
+move 2 from 2 to 8
+move 5 from 4 to 2
+move 7 from 1 to 4
+move 3 from 8 to 2
+move 3 from 2 to 7
+move 1 from 7 to 4
+move 3 from 2 to 9
+move 4 from 7 to 9
+move 1 from 5 to 2
+move 2 from 3 to 4
+move 5 from 9 to 5
+move 6 from 9 to 3
+move 5 from 9 to 5
+move 1 from 9 to 7
+move 2 from 3 to 1
+move 7 from 3 to 9
+move 2 from 7 to 2
+move 5 from 2 to 4
+move 1 from 2 to 9
+move 2 from 1 to 9
+move 7 from 6 to 1
+move 2 from 7 to 3
+move 2 from 3 to 9
+move 1 from 7 to 4
+move 1 from 9 to 2
+move 3 from 1 to 8
+move 2 from 3 to 4
+move 5 from 9 to 2
+move 1 from 3 to 9
+move 8 from 5 to 7
+move 1 from 6 to 1
+move 15 from 4 to 1
+move 4 from 2 to 5
+move 5 from 9 to 7
+move 1 from 9 to 5
+move 5 from 1 to 2
+move 3 from 8 to 9
+move 1 from 7 to 6
+move 11 from 1 to 2
+move 7 from 5 to 3
+move 4 from 2 to 6
+move 7 from 3 to 4
+move 3 from 5 to 9
+move 2 from 2 to 5
+move 5 from 1 to 8
+move 2 from 6 to 8
+move 3 from 8 to 9
+move 9 from 4 to 9
+move 9 from 7 to 4
+move 2 from 8 to 1
+move 1 from 8 to 7
+move 6 from 2 to 7
+move 5 from 2 to 4
+move 5 from 7 to 2
+move 2 from 1 to 7
+move 2 from 6 to 4
+move 7 from 7 to 1
+move 3 from 2 to 6
+move 1 from 8 to 7
+move 2 from 9 to 3
+move 2 from 3 to 1
+move 1 from 2 to 5
+move 4 from 6 to 5
+move 2 from 2 to 3
+move 3 from 5 to 7
+move 1 from 5 to 3
+move 9 from 1 to 7
+move 2 from 9 to 5
+move 13 from 4 to 1
+move 5 from 7 to 2
+move 3 from 3 to 1
+move 2 from 2 to 9
+move 1 from 2 to 7
+move 5 from 5 to 6
+move 2 from 2 to 4
+move 5 from 1 to 3
+move 9 from 7 to 8
+move 2 from 9 to 5
+move 3 from 5 to 4
+move 5 from 9 to 2
+move 10 from 4 to 8
+move 1 from 4 to 1
+move 2 from 8 to 4
+move 4 from 8 to 2
+move 3 from 6 to 8
+move 7 from 8 to 7
+move 10 from 9 to 3
+move 7 from 3 to 2
+move 11 from 2 to 3
+move 13 from 3 to 9
+move 1 from 6 to 3
+move 1 from 1 to 2
+move 1 from 2 to 8
+move 3 from 3 to 4
+move 1 from 2 to 9
+move 1 from 4 to 1
+move 10 from 8 to 3
+move 11 from 9 to 7
+move 1 from 6 to 2
+move 14 from 7 to 1
+move 2 from 2 to 9
+move 4 from 7 to 6
+move 1 from 2 to 4
+move 3 from 4 to 2
+move 4 from 2 to 9
+move 10 from 3 to 4
+move 3 from 6 to 1
+move 5 from 9 to 5
+move 5 from 5 to 8
+move 1 from 9 to 7
+move 2 from 9 to 6
+move 1 from 9 to 8
+move 2 from 4 to 8
+move 1 from 4 to 5
+move 2 from 3 to 1
+move 2 from 3 to 7
+move 27 from 1 to 2
+move 2 from 7 to 1
+move 9 from 4 to 6
+move 9 from 6 to 5
+move 5 from 8 to 6
+move 26 from 2 to 3
+move 1 from 2 to 5
+move 1 from 2 to 7
+move 1 from 8 to 4
+move 1 from 7 to 8
+move 24 from 3 to 5
+move 1 from 8 to 5
+move 1 from 4 to 3
+move 1 from 7 to 1
+move 1 from 8 to 9
+move 7 from 1 to 7
+move 8 from 6 to 4
+move 4 from 7 to 6
+move 1 from 3 to 9
+move 2 from 9 to 1
+move 3 from 7 to 9
+move 8 from 4 to 6
+move 3 from 9 to 1
+move 1 from 3 to 6
+move 1 from 8 to 2
+move 10 from 5 to 4
+move 1 from 3 to 8
+move 13 from 5 to 3
+move 1 from 2 to 9
+move 1 from 8 to 9
+move 1 from 3 to 8
+move 1 from 9 to 2
+move 3 from 6 to 9
+move 7 from 4 to 9
+move 4 from 3 to 9
+move 2 from 6 to 8
+move 2 from 4 to 5
+move 10 from 9 to 3
+move 1 from 1 to 9
+move 1 from 4 to 8
+move 1 from 1 to 4
+move 1 from 4 to 5
+move 4 from 6 to 3
+move 1 from 9 to 5
+move 1 from 6 to 9
+move 2 from 6 to 5
+move 1 from 9 to 2
+move 1 from 6 to 7
+move 18 from 5 to 2
+move 22 from 3 to 7
+move 19 from 7 to 1
+move 3 from 8 to 5
+move 4 from 9 to 3
+move 2 from 7 to 2
+move 1 from 8 to 1
+move 19 from 1 to 3
+move 2 from 7 to 5
+move 13 from 3 to 9
+move 4 from 1 to 2
+move 3 from 5 to 1
+move 11 from 9 to 1
+move 11 from 2 to 8
+move 3 from 9 to 3
+move 3 from 5 to 2
+move 2 from 1 to 4
+move 5 from 2 to 7
+move 12 from 1 to 5
+move 2 from 4 to 5
+move 9 from 5 to 8
+move 1 from 5 to 3
+move 4 from 2 to 3
+move 2 from 7 to 5
+move 6 from 2 to 8
+move 17 from 8 to 9
+move 2 from 9 to 6
+move 2 from 7 to 1
+move 15 from 9 to 6
+move 2 from 2 to 4
+move 9 from 8 to 5
+move 2 from 1 to 3
+move 12 from 6 to 2
+move 2 from 3 to 9
+move 5 from 6 to 3
+move 4 from 5 to 3
+move 11 from 3 to 4
+move 2 from 9 to 4
+move 6 from 5 to 2
+move 13 from 4 to 3
+move 1 from 4 to 5
+move 1 from 4 to 8
+move 18 from 2 to 6
+move 2 from 5 to 3
+move 1 from 8 to 3
+move 1 from 2 to 5
+move 1 from 7 to 8
+move 28 from 3 to 6
+move 2 from 3 to 4
+move 3 from 5 to 9
+move 2 from 5 to 9
+move 3 from 9 to 3
+move 5 from 3 to 4
+move 1 from 9 to 3
+move 1 from 9 to 1
+move 1 from 3 to 4
+move 45 from 6 to 2
+move 1 from 8 to 3
+move 2 from 4 to 6
+move 5 from 4 to 2
+move 1 from 3 to 7
+move 3 from 2 to 9
+move 1 from 4 to 8
+move 3 from 6 to 1
+move 42 from 2 to 8
+move 2 from 9 to 2
+move 4 from 2 to 6
+move 2 from 2 to 7
+move 1 from 9 to 6
+move 2 from 8 to 9
+move 4 from 1 to 8
+move 1 from 6 to 4
+move 1 from 4 to 8
+move 1 from 2 to 5
+move 3 from 7 to 4
+move 39 from 8 to 3
+move 7 from 8 to 5
+move 8 from 5 to 7
+move 35 from 3 to 1
+move 4 from 3 to 7
+move 10 from 7 to 2
+move 2 from 9 to 6
+move 3 from 4 to 2
+move 1 from 7 to 5
+move 1 from 7 to 8
+move 1 from 5 to 4
+move 12 from 1 to 6
+move 1 from 8 to 1
+move 1 from 4 to 5
+move 14 from 6 to 8
+move 9 from 8 to 6
+move 5 from 6 to 1
+move 11 from 2 to 9
+move 1 from 9 to 8
+move 6 from 8 to 3
+move 6 from 9 to 2
+move 8 from 1 to 9
+move 3 from 3 to 6
+move 7 from 1 to 4
+move 1 from 5 to 9
+move 8 from 9 to 8
+move 7 from 6 to 8
+move 1 from 9 to 3
+move 3 from 6 to 4
+move 3 from 9 to 1
+move 4 from 3 to 2
+move 1 from 6 to 7
+move 1 from 4 to 2
+move 13 from 1 to 7
+move 6 from 4 to 8
+move 1 from 7 to 3
+move 1 from 4 to 6
+move 1 from 9 to 5
+move 1 from 3 to 5
+move 19 from 8 to 9
+move 1 from 6 to 5
+move 6 from 9 to 2
+move 2 from 5 to 8
+move 1 from 5 to 2
+move 4 from 1 to 4
+move 8 from 9 to 4
+move 3 from 9 to 8
+move 2 from 9 to 1
+move 6 from 7 to 5
+move 12 from 4 to 2
+move 6 from 8 to 3
+move 1 from 4 to 1
+move 1 from 3 to 1
+move 13 from 2 to 3
+move 4 from 5 to 3
+move 1 from 4 to 9
+move 1 from 8 to 9
+move 12 from 3 to 2
+move 1 from 9 to 1
+move 2 from 5 to 9
+move 3 from 9 to 5
+move 1 from 7 to 5
+move 3 from 7 to 3
+move 1 from 5 to 4
+move 1 from 5 to 8
+move 9 from 2 to 3
+move 2 from 2 to 3
+move 3 from 1 to 9
+move 1 from 8 to 9
+move 3 from 9 to 1
+move 9 from 2 to 6
+move 1 from 9 to 5
+move 6 from 2 to 3
+move 2 from 6 to 9
+move 3 from 6 to 3
+move 1 from 4 to 3
+move 2 from 9 to 6
+move 2 from 7 to 2
+move 2 from 2 to 8
+move 24 from 3 to 7
+move 2 from 5 to 6
+move 2 from 8 to 2
+move 7 from 2 to 8
+move 8 from 3 to 6
+move 2 from 1 to 3
+move 1 from 1 to 2
+move 1 from 5 to 2
+move 15 from 7 to 4
+move 9 from 7 to 9
+move 7 from 9 to 1
+move 5 from 8 to 1
+move 4 from 1 to 4
+move 19 from 4 to 3
+move 22 from 3 to 5
+move 1 from 7 to 5
+move 9 from 5 to 4
+move 6 from 1 to 3
+move 6 from 3 to 1
+move 4 from 5 to 4
+move 1 from 2 to 1
+move 1 from 2 to 6
+move 4 from 6 to 1
+move 1 from 3 to 6
+move 3 from 6 to 3
+move 2 from 9 to 8
+move 2 from 5 to 3
+move 2 from 5 to 1
+move 10 from 6 to 4
+move 4 from 4 to 9
+move 7 from 4 to 3
+move 2 from 8 to 7
+move 4 from 9 to 3
+move 5 from 5 to 7
+move 1 from 5 to 1
+move 1 from 6 to 3
+move 1 from 8 to 4
+move 1 from 8 to 3
+move 13 from 4 to 5
+move 1 from 1 to 8
+move 6 from 5 to 3
+move 1 from 7 to 6
+move 5 from 7 to 6
+move 9 from 1 to 8
+move 1 from 8 to 4
+move 1 from 7 to 1
+move 1 from 4 to 1
+move 5 from 3 to 7
+move 3 from 7 to 9
+move 1 from 5 to 4
+move 6 from 8 to 6
+move 1 from 9 to 3
+move 2 from 9 to 5
+move 7 from 5 to 9
+move 1 from 7 to 5
+move 2 from 5 to 3
+move 10 from 6 to 8
+move 2 from 6 to 1
+move 1 from 4 to 9
+move 1 from 7 to 5
+move 8 from 8 to 2
+move 1 from 1 to 7
+move 1 from 9 to 7
+move 1 from 5 to 1
+move 3 from 9 to 8
+move 7 from 8 to 7
+move 6 from 7 to 1
+move 1 from 8 to 7
+move 4 from 7 to 1
+move 16 from 3 to 7
+move 4 from 3 to 1
+move 5 from 7 to 8
+move 16 from 1 to 4
+move 9 from 1 to 7
+move 1 from 3 to 4
+move 15 from 4 to 8
+move 1 from 3 to 1
+move 2 from 1 to 6
+move 2 from 4 to 9
+move 17 from 8 to 2
+move 6 from 9 to 5
+move 8 from 7 to 8
+move 2 from 6 to 9
+move 4 from 5 to 7
+move 2 from 8 to 5
+move 1 from 5 to 9
+move 11 from 2 to 6
+move 4 from 6 to 1
+move 5 from 2 to 8
+move 2 from 9 to 2
+move 1 from 9 to 3
+move 3 from 1 to 8
+move 1 from 3 to 6
+move 7 from 6 to 9
+move 2 from 5 to 4
+move 6 from 7 to 4
+move 4 from 8 to 1
+move 1 from 5 to 2
+move 1 from 6 to 1
+move 7 from 9 to 8
+move 2 from 7 to 9
+move 9 from 2 to 9
+move 5 from 9 to 3
+move 3 from 2 to 8
+move 4 from 8 to 7
+move 9 from 7 to 2
+move 3 from 1 to 3
+move 14 from 8 to 1
+move 2 from 8 to 3
+move 1 from 9 to 4
+move 3 from 7 to 9
+move 8 from 3 to 9
+move 2 from 2 to 7
+move 12 from 1 to 8
+move 4 from 1 to 6
+move 2 from 6 to 7
+move 1 from 6 to 7
+move 9 from 4 to 7
+move 9 from 7 to 4
+move 1 from 1 to 6
+move 2 from 3 to 6
+move 2 from 6 to 8
+move 12 from 9 to 8
+move 2 from 6 to 9
+move 2 from 9 to 7
+move 1 from 8 to 5
+move 5 from 7 to 5
+move 1 from 9 to 1
+move 3 from 4 to 1
+move 5 from 4 to 8
+move 4 from 1 to 7
+move 1 from 4 to 2
+move 19 from 8 to 4
+move 2 from 7 to 5
+move 14 from 8 to 5
+move 2 from 7 to 8
+move 3 from 9 to 8
+move 19 from 4 to 2
+move 9 from 2 to 4
+move 2 from 7 to 8
+move 15 from 5 to 9
+move 15 from 9 to 8
+move 1 from 5 to 9
+move 11 from 8 to 7
+move 4 from 5 to 8
+move 1 from 5 to 9
+move 2 from 9 to 5
+move 2 from 2 to 6
+move 14 from 2 to 9
+move 12 from 8 to 9
+move 3 from 8 to 4
+move 7 from 9 to 2
+move 4 from 7 to 9
+move 1 from 6 to 9
+move 1 from 7 to 5
+move 1 from 6 to 2
+move 3 from 5 to 4
+move 19 from 9 to 4
+move 1 from 5 to 1
+move 1 from 9 to 8
+move 1 from 1 to 7
+move 1 from 8 to 9
+move 4 from 7 to 2
+move 3 from 7 to 6
+move 18 from 4 to 2
+move 17 from 2 to 3
+move 2 from 6 to 8
+move 17 from 3 to 6
+move 13 from 2 to 1
+move 2 from 8 to 3
+move 2 from 2 to 9
+move 6 from 1 to 9
+move 1 from 3 to 4
+move 1 from 3 to 9
+move 8 from 6 to 4
+move 20 from 4 to 8
+move 3 from 4 to 8
+move 15 from 8 to 2
+move 11 from 2 to 6
+move 2 from 1 to 7
+move 7 from 9 to 8
+move 6 from 9 to 3
+move 1 from 6 to 5

rust/5/part1.rs

@@ -0,0 +1,64 @@
+use std::{
+    fs::File,
+    io::{BufRead, BufReader},
+};
+
+enum State {
+    Parsing,
+    Moving,
+}
+
+// I hate everything about this
+fn main() -> () {
+    let path = "input.txt";
+
+    let input = File::open(path).unwrap();
+    let buf = BufReader::new(input);
+
+    let stack_char_width = 4;
+    let mut stacks = Vec::<Vec<String>>::new();
+    let mut state = State::Parsing;
+    for line in buf.lines() {
+        let line = line.unwrap();
+        match state {
+            State::Parsing => {
+                if stacks.len() == 0 {
+                    for _ in 0..(line.len() + 1) / stack_char_width {
+                        stacks.push(Vec::new());
+                    }
+                }
+                if line != "" {
+                    for i in 0..stacks.len() {
+                        let idx = i * stack_char_width + 1;
+                        let char = &line[idx..idx + 1];
+                        if char != " " {
+                            stacks[i].push(char.to_owned());
+                        }
+                    }
+                } else {
+                    state = State::Moving;
+                    for stack in &mut stacks {
+                        stack.pop();
+                        stack.reverse();
+                    }
+                }
+            }
+            State::Moving => {
+                let tokens = line
+                    .split(' ')
+                    .filter_map(|tok| tok.parse::<usize>().ok())
+                    .collect::<Vec<_>>();
+                for _ in 0..tokens[0] {
+                    let tmp = stacks[tokens[1] - 1].pop().unwrap();
+                    stacks[tokens[2] - 1].push(tmp);
+                }
+            }
+        };
+    }
+    println!(
+        "{}",
+        stacks.into_iter().fold(String::from(""), |acc, mut stack| {
+            acc + &stack.pop().unwrap()
+        })
+    );
+}

rust/5/part2.rs

@@ -0,0 +1,65 @@
+use std::{
+    fs::File,
+    io::{BufRead, BufReader},
+};
+
+enum State {
+    Parsing,
+    Moving,
+}
+
+fn main() -> () {
+    let path = "input.txt";
+
+    let input = File::open(path).unwrap();
+    let buf = BufReader::new(input);
+
+    let stack_char_width = 4;
+    let mut stacks = Vec::<Vec<String>>::new();
+    let mut state = State::Parsing;
+    for line in buf.lines() {
+        let line = line.unwrap();
+        match state {
+            State::Parsing => {
+                if stacks.len() == 0 {
+                    for _ in 0..(line.len() + 1) / stack_char_width {
+                        stacks.push(Vec::new());
+                    }
+                }
+                if line != "" {
+                    for i in 0..stacks.len() {
+                        let idx = i * stack_char_width + 1;
+                        let char = &line[idx..idx + 1];
+                        if char != " " {
+                            stacks[i].push(char.to_owned());
+                        }
+                    }
+                } else {
+                    state = State::Moving;
+                    for stack in &mut stacks {
+                        stack.pop();
+                        stack.reverse();
+                    }
+                }
+            }
+            State::Moving => {
+                let tokens = line
+                    .split(' ')
+                    .filter_map(|tok| tok.parse::<usize>().ok())
+                    .collect::<Vec<_>>();
+                let mut tmp = Vec::<String>::new();
+                for _ in 0..tokens[0] {
+                    tmp.push(stacks[tokens[1] - 1].pop().unwrap());
+                }
+                tmp.reverse();
+                stacks[tokens[2] - 1].append(&mut tmp);
+            }
+        };
+    }
+    println!(
+        "{}",
+        stacks.into_iter().fold(String::from(""), |acc, mut stack| {
+            acc + &stack.pop().unwrap()
+        })
+    );
+}