d11 + d12

.idea/misc.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Black">
+    <option name="sdkName" value="Python 3.11" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.11" project-jdk-type="Python SDK" />
+</project>

python/day11.py

@@ -0,0 +1,15 @@
+path = 'res/01/input'
+
+space = []
+
+with open(path, 'r') as file:
+    for line in file:
+        space.append([1 if c is '#' else 0 for c in line])
+        if '#' not in line:
+            space.append([0 for _ in line])
+
+ind = set()
+for i in range(len(space[0])):
+    if '#' not in [space[i][j] for j in range(len(space))]:
+        ind.add(i)
+

res/11/example

@@ -0,0 +1,10 @@
+...#......
+.......#..
+#.........
+..........
+......#...
+.#........
+.........#
+..........
+.......#..
+#...#.....

res/11/input

@@ -0,0 +1,140 @@
+................................................#.........#............................................#....................................
+..#.............#......#.............................................#...........................................................#..........
+..............................................................#..............................#..............................................
+.................................................................................................................#..........................
+...........#...........................#...............................................#..................................#.............#...
+............................#..................#.....#..........................#...........................................................
+..................................#................................#........................................................................
+...........................................................................#................................................................
+.....#...................................#......................................................#.......................#...........#.....#.
+.....................#........#....................#....................................................#...................................
+......................................................................#.....................................................................
+...........................................................#.................................#..............................................
+........#..................#....................#....................................................#......................................
+#.............#....................................................#..............#.............................#...........................
+...................#.............#...................................................................................#...............#......
+.............................................................................#.............................................................#
+.........................................................................................................#..................................
+....#...........................................................................................#...........................#.....#.........
+.....................#.......................#.........#....................................................................................
+#............#.........................................................................#....................#...............................
+................................#..................#...........#......#............................#...................#.......#............
+.......................................................................................................................................#....
+...................................................................................#........................................................
+.........................#.............#...................................................................................#................
+............................................................................................................................................
+..........#..............................................................#......#.........#..........#......................................
+............................................................................................................................................
+.................................................................................................#............................#.............
+................#...............................#............#.....................#........................................................
+.#........................#..........................#......................................................#.......................#.......
+.......#....................................#................................#..............................................................
+.................................#.....................................#..................................................................#.
+........................................................#.............................#...............................#........#............
+.....................#...................#.....#...............#............................................................................
+.............#...................................................................................................#..........................
+................................................................................................#.....#...............................#.....
+.................#................#................#........................................................................................
+.#..........................#.............................#.......#.......#................................................................#
+.............................................#.............................................................#................................
+...........#.................................................................................#...............................#..............
+.....................#.................................#.......#..................................................................#.....#...
+.......#..............................#..............................................................#......................................
+#...............................#.....................................#...............#........................#.......#....................
+...........................................................................#.....#.........................................................#
+...........................................................................................#................................................
+........................................................#................................................#.......................#..........
+.........#............#............................................#.................................................#.....#................
+............................................................................................................................................
+......................................#......#........................................................#.........#...........................
+.............#.....#......#..........................#......................................................................................
+......#................................................................................................................................#....
+.............................................................................................................#..............................
+..#.......#.............................#.....................#..................#........#.................................................
+............................................................................................................................................
+......................................................................................#...............................#.....................
+..................#...........................#...........................#.........................#.........................#.............
+............................................................................................................................................
+......................................#..................................................#.........................................#........
+.......................#.....#................................................................#.............#............#..................
+.....#.............................................#.............#..........................................................................
+.............#...........................................................#.......#..................................#...........#...........
+.................................#..........................................................................................................
+.............................................#...........#..................................................................................
+.......#......................................................#............................#.........#........#.............................
+.....................#................................................#...........................................................#.........
+...............#...................#...............#.......................................................................#................
+#..........................#......................................................................#.........................................
+.............................................................................#..............................................................
+...............................#......#.................#..............................................#..........#.........................
+...........................................................................................................................................#
+.................#......#.......................#....................................#.....#..............................#.................
+.........#.............................................................#..................................#.................................
+....................................................#............#............#.........................................................#...
+..#.........................................................#........................................................#..........#...........
+............................................................................................................................................
+............................................................................................................................................
+.......#...........................#..............................................................#.........................................
+....................#...................................#................................................................#..................
+..............................#.............................................................................................................
+..#......................#.............................................#........#..........#................................................
+..........#.............................#......................#................................................................#...........
+.....................................................................................................#......................................
+......................#.............................................................................................#......................#
+#................#..................................#........................................#.................#............................
+...................................#......#.......................#...........#..........................................#.............#....
+............................................................................................................................................
+..........#..............................................#..................................................................................
+............................................................................................................................................
+....................#......#..........#.......................#......#....................#..........#.......#..................#...........
+...#.........................................................................#..............................................................
+..................................................................................#..............#..........................................
+........#.......................#..........#................................................................................................
+..............#...........................................................................................#.................................
+................................................................#.......................................................................#...
+.......................#................#.....................................................................#.............................
+....#............#............#.................................................................#.....#.....................................
+...................................................................................................................#........................
+...........................................#..............................................................................#.................
+.......#.........................................#.......#.......#.....#...............................................................#....
+................................................................................#...........#.....................................#.........
+...........#.....................................................................................#..........................................
+..............................................................#.............................................................................
+...............#.........#..........#........................................................................#..............................
+...........................................#......................................................................#......#..................
+....#...............#.......................................................................................................................
+......................................................................................#..............................................#......
+...............................................#...............#..............#.................#...........................................
+.#.........................................................................................#.........................#......................
+................#......#................#................................#..........................#...........#...........................
+......#......................#.....................#.......#................................................................................
+.............................................#...........................................................#...............#.....#........#...
+...........#.........................................................................#......................................................
+............................................................................#...............................................................
+.........................................................................................#............................#.....................
+...................#...................#.....................#....................................#.............#...........................
+.................................#..........................................................................................................
+.......#......#...........#..................................................................................................#.....#........
+.......................................................................#..............#........#.............#..............................
+......................#..................#......#..............#..............#.....................................#..................#....
+..........................................................................................#.............#...................................
+.........#..........................................#..............#.......................................................#................
+.............................#..............................................................................................................
+.............................................#...................................#..........................................................
+................#..................#........................................#......................................#........................
+....#.................#.................#.............................................#.................................#..................#
+............................................................#.........#..................................#..................................
+......................................................#...................................#.................................................
+.................................#..................................................................#.......................................
+.................................................#...................................................................................#......
+............................................................................................................................................
+..................#.............................................#.............#.........................#................#..................
+.........#.................................................#...........#.............#........#..............#............................#.
+...................................#.........................................................................................#..............
+............................................................................................................................................
+#.....................#...................................................#.......#...............................#.........................
+..............................#.................#........#..........................................................................#.......
+..............#........................................................................#....................................................
+...........................................#.............................................................#..............................#...
+.................................#...................................................................................#...........#..........
+...........#.......#.......#...........................#.....#................#......................#........#.............................

res/12/example

@@ -0,0 +1,6 @@
+???.### 1,1,3
+.??..??...?##. 1,1,3
+?#?#?#?#?#?#?#? 1,3,1,6
+????.#...#... 4,1,1
+????.######..#####. 1,6,5
+?###???????? 3,2,1

src/days/d11.rs

@@ -0,0 +1,68 @@
+use std::fs;
+
+pub fn solve() {
+    let path = "res/11/input";
+
+    let contents = fs::read_to_string(path).expect("I/O error, wrong path?");
+    //let contents = BufReader::new(fs::File::open(path).expect("I/O error, wrong path?"));
+
+    let mut galaxies: Vec<(usize, usize)> = Vec::new();
+    for (i, line) in contents.lines().enumerate() {
+        for (j, c) in line.chars().enumerate() {
+            if c == '#' {
+                galaxies.push((i, j))
+            }
+        }
+    }
+
+    let mut result = 0;
+    for i in 0..galaxies.len() {
+        for j in i + 1..galaxies.len() {
+            let (x1, y1) = galaxies[i];
+            let (x2, y2) = galaxies[j];
+            result += x1.abs_diff(x2) + y1.abs_diff(y2);
+        }
+    }
+
+    for (i, row) in contents.lines().enumerate() {
+        if !row.contains('#') {
+            let top = galaxies.iter().filter(|(x, _)| *x < i).count();
+            let bot = galaxies.len() - top;
+            result += top * bot;
+        }
+    }
+
+    let space: Vec<Vec<char>> = contents
+        .lines()
+        .map(|l| l.chars().collect::<Vec<_>>())
+        .collect();
+    for j in 0..space[0].len() {
+        let col: Vec<char> = (0..space.len()).map(|i| space[i][j]).collect();
+        if !col.contains(&'#') {
+            let left = galaxies.iter().filter(|(_, y)| *y < j).count();
+            let right = galaxies.len() - left;
+            result += right * left;
+        }
+    }
+
+    println!("Result 1: {result}");
+
+    for (i, row) in contents.lines().enumerate() {
+        if !row.contains('#') {
+            let top = galaxies.iter().filter(|(x, _)| *x < i).count();
+            let bot = galaxies.len() - top;
+            result += top * bot * 999998;
+        }
+    }
+
+    for j in 0..space[0].len() {
+        let col: Vec<char> = (0..space.len()).map(|i| space[i][j]).collect();
+        if !col.contains(&'#') {
+            let left = galaxies.iter().filter(|(_, y)| *y < j).count();
+            let right = galaxies.len() - left;
+            result += right * left * 999998;
+        }
+    }
+
+    println!("Result 2: {result}");
+}

src/days/d12.rs

@@ -0,0 +1,122 @@
+use std::{collections::HashMap, fs};
+
+use rayon::prelude::*;
+
+pub fn solve() {
+    let path = "res/12/input";
+
+    let contents = fs::read_to_string(path).expect("I/O error, wrong path?");
+    //let contents = BufReader::new(fs::File::open(path).expect("I/O error, wrong path?"));
+
+    let result: usize = contents
+        .par_lines()
+        .map(|line| {
+            let (springs_str, nums_str) = line.split_once(" ").unwrap();
+            let nums: Vec<usize> = nums_str
+                .split(",")
+                .map(|n| n.parse::<usize>().unwrap())
+                .collect();
+
+            let mut springs: Vec<char> = springs_str.chars().collect();
+            springs.push('.');
+
+            let mut cache = HashMap::new();
+
+            count_spring_arrangements(&mut cache, springs_str.as_bytes(), None, &nums)
+        })
+        .sum();
+
+    println!("Result 1: {result}");
+
+    let result: usize = contents
+        .lines()
+        .map(|line| {
+            let (springs_str, nums_str) = line.split_once(" ").unwrap();
+            let nums_tmp: Vec<usize> = nums_str
+                .split(",")
+                .map(|n| n.parse::<usize>().unwrap())
+                .collect();
+
+            let nums: Vec<usize> = nums_tmp
+                .iter()
+                .cycle()
+                .take(nums_tmp.len() * 5)
+                .map(|i| *i)
+                .collect();
+            let springs: String = std::iter::repeat(String::from(springs_str))
+                .take(5)
+                .collect::<Vec<String>>()
+                .join("?");
+
+            let mut cache = HashMap::new();
+
+            count_spring_arrangements(&mut cache, springs.as_bytes(), None, &nums)
+        })
+        .sum();
+
+    println!("Result 2: {result}");
+}
+
+fn count_spring_arrangements(
+    cache: &mut HashMap<(usize, usize, usize), usize>,
+    springs: &[u8],
+    in_broken_group: Option<usize>,
+    remaining_broken: &[usize],
+) -> usize {
+    if springs.is_empty() {
+        return match (in_broken_group, remaining_broken.len()) {
+            (None, 0) => 1,
+            (Some(x), 1) if x == remaining_broken[0] => 1,
+            _ => 0,
+        };
+    }
+
+    if in_broken_group.is_some() && remaining_broken.is_empty() {
+        return 0;
+    }
+
+    let key = (
+        springs.len(),
+        in_broken_group.unwrap_or(0),
+        remaining_broken.len(),
+    );
+    if let Some(&result) = cache.get(&key) {
+        return result;
+    }
+
+    let ways = match (springs[0], in_broken_group) {
+        (b'.', Some(x)) if x != remaining_broken[0] => 0,
+        (b'.', Some(_)) => {
+            count_spring_arrangements(cache, &springs[1..], None, &remaining_broken[1..])
+        }
+        (b'.', None) => count_spring_arrangements(cache, &springs[1..], None, remaining_broken),
+        (b'#', Some(_)) => count_spring_arrangements(
+            cache,
+            &springs[1..],
+            in_broken_group.map(|x| x + 1),
+            remaining_broken,
+        ),
+        (b'#', None) => count_spring_arrangements(cache, &springs[1..], Some(1), remaining_broken),
+        (b'?', Some(x)) => {
+            let mut ans = count_spring_arrangements(
+                cache,
+                &springs[1..],
+                in_broken_group.map(|x| x + 1),
+                remaining_broken,
+            );
+            if x == remaining_broken[0] {
+                ans +=
+                    count_spring_arrangements(cache, &springs[1..], None, &remaining_broken[1..]);
+            }
+            ans
+        }
+        (b'?', None) => {
+            count_spring_arrangements(cache, &springs[1..], Some(1), remaining_broken)
+                + count_spring_arrangements(cache, &springs[1..], None, remaining_broken)
+        }
+        _ => unreachable!(),
+    };
+
+    cache.insert(key, ways);
+    ways
+}

src/main.rs

@@ -3,7 +3,7 @@ pub mod days;
 
 
 fn main() {
-    days::d10::solve()
+    days::d12::solve()
     //_all_days()
 }