comparing b1650ce3f73d66da771ba47c3897bef5cbb6d137 and main on aylac.top/advent_of_code

.gitignore

-10

2015/16/sue.txt

···

       1
       -
       children: 3

     

       2
       -
       cats: 7

     

       3
       -
       samoyeds: 2

     

       4
       -
       pomeranians: 3

     

       5
       -
       akitas: 0

     

       6
       -
       vizslas: 0

     

       7
       -
       goldfish: 5

     

       8
       -
       trees: 3

     

       9
       -
       cars: 2

     

       10
       -
       perfumes: 1

+40 -18

2015/19/rust/src/main.rs

···

       1
       -
       struct Combination {

     

       2
       -
           original: String,

     

       3
       -
           target: String,

     

       4
       -
       }

     

       5
        
       

     

       6
        
       fn main() {

     

       7
       -
           let input: String = std::fs::read_to_string("../input.txt").expect("invalid input!!");

     

       8
       -
           let input: Vec<&str> = input.split("\n").collect();

     

       9
       -
           let combinations: Vec<Combination> = &input[..input.len() - 2].iter().map(|v| {

     

       10
       -
               let v: Vec<&str> = v.split(" ").collect();

     

       11
       -
               match v[..] {

     

       12
       -
                   [original, _, target] => Combination {

     

       13
       -
                       original: original.to_string(),

     

       14
       -
                       target: target.to_string(),

     

       15
       -
                   },

     

       16
       -
                   _ => Combination {

     

       17
       -
                       original: "".to_string(),

     

       18
       -
                       target: "".to_string(),

     

       19
       -
                   },

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       20
        
               }

     

       21
       -
           }).

     

       0
        
       
     

       22
        
       }

···

       1
       +
       use std::collections::{HashMap, HashSet};

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       2
        
       

     

       3
        
       fn main() {

     

       4
       +
           let input = include_str!("../../input.txt");

     

       5
       +
           let input: Vec<&str> = input.trim().split("\n").collect();

     

       6
       +
       

     

       7
       +
           let combinations: HashMap<String, Vec<String>> = {

     

       8
       +
               let mut combinations = HashMap::new();

     

       9
       +
               input[..input.len() - 2].iter().for_each(|v| {

     

       10
       +
                   let v: Vec<&str> = v.split(" ").collect();

     

       11
       +
                   match v[..] {

     

       12
       +
                       [original, "=>", target] => {

     

       13
       +
                           let entry = combinations

     

       14
       +
                               .entry(original.to_string())

     

       15
       +
                               .or_insert(Vec::with_capacity(1));

     

       16
       +
                           entry.push(target.to_string());

     

       17
       +
                       }

     

       18
       +
                       _ => panic!("{:?}", v),

     

       19
       +
                   }

     

       20
       +
               });

     

       21
       +
               combinations

     

       22
       +
           };

     

       23
       +
       

     

       24
       +
           let medicine_mol = input.last().unwrap();

     

       25
       +
       

     

       26
       +
           // part 1

     

       27
       +
           {

     

       28
       +
               let mol_len = medicine_mol.len();

     

       29
       +
               let mut possibilities: HashSet<String> = HashSet::new();

     

       30
       +
               for i in 0..mol_len {

     

       31
       +
                   let (a, b) = medicine_mol.split_at(i);

     

       32
       +
                   combinations.iter().for_each(|(from, to)| {

     

       33
       +
                       to.iter().for_each(|to| {

     

       34
       +
                           possibilities.insert(format!(

     

       35
       +
                               "{}{}",

     

       36
       +
                               a,

     

       37
       +
                               b.replacen(from, to, 1)

     

       38
       +
                           ));

     

       39
       +
                       })

     

       40
       +
                   });

     

       41
        
               }

     

       42
       +
               println!("Part 1: {}", possibilities.len() - 1)

     

       43
       +
           }

     

       44
        
       }

2015/20/rust/Cargo.lock

···

       1
       +
       # This file is automatically @generated by Cargo.

     

       2
       +
       # It is not intended for manual editing.

     

       3
       +
       version = 4

     

       4
       +
       

     

       5
       +
       [[package]]

     

       6
       +
       name = "rust"

     

       7
       +
       version = "0.1.0"

2015/20/rust/Cargo.toml

···

       1
       +
       [package]

     

       2
       +
       name = "rust"

     

       3
       +
       version = "0.1.0"

     

       4
       +
       edition = "2024"

     

       5
       +
       

     

       6
       +
       [dependencies]

+33

2015/20/rust/src/main.rs

···

       1
       +
       fn main() {

     

       2
       +
           let input: u64 = include_str!("../../input.txt")

     

       3
       +
               .trim()

     

       4
       +
               .parse()

     

       5
       +
               .expect("bad input");

     

       6
       +
           let input = input / 10;

     

       7
       +
       

     

       8
       +
           let mut highest_house = (0, 0);

     

       9
       +
           let mut house: u64 = 1;

     

       10
       +
           // while highest_house.1 < input {

     

       11
       +
           while house < 10 {

     

       12
       +
               let presents = if house % 2 == 0 {

     

       13
       +
                   (1..house + 1).fold(0, |acc, elf| {

     

       14
       +
                       if house % elf == 0 { acc + elf } else { acc }

     

       15
       +
                   })

     

       16
       +
               } else {

     

       17
       +
                   (1..house.div_ceil(2) + 1).fold(0, |acc, elf| {

     

       18
       +
                       if house % (elf * 2) == 0 {

     

       19
       +
                           acc + elf

     

       20
       +
                       } else {

     

       21
       +
                           acc

     

       22
       +
                       }

     

       23
       +
                   })

     

       24
       +
               };

     

       25
       +
               if presents > highest_house.1 {

     

       26
       +
                   highest_house = (house, presents);

     

       27
       +
               }

     

       28
       +
               house += 1;

     

       29
       +
               println!("{} {}", house, presents);

     

       30
       +
           }

     

       31
       +
       

     

       32
       +
           println!("Part 1: {:?}", highest_house);

     

       33
       +
       }

2025/3/rust/src/main.rs

···

       7
        
                   let (loc, max) = bank[bank_index..bank_len - i]

     

       8
        
                       .iter()

     

       9
        
                       .enumerate()

     

       0
        
       
     

       10
        
                       .reduce(

     

       11
        
                           |(maxi, max), (i, n)| {

     

       12
        
                               if n > max { (i, n) } else { (maxi, max) }

···

       7
        
                   let (loc, max) = bank[bank_index..bank_len - i]

     

       8
        
                       .iter()

     

       9
        
                       .enumerate()

     

       10
       +
                       // apparently the compiler is fine with reversing this and then using the standard max_by but im not. and it seems to have the same speed results. im not gonna be using tricks here ok im nice

     

       11
        
                       .reduce(

     

       12
        
                           |(maxi, max), (i, n)| {

     

       13
        
                               if n > max { (i, n) } else { (maxi, max) }

+20

2025/4/gleam/gleam.toml

···

       1
       +
       name = "main"

     

       2
       +
       version = "1.0.0"

     

       3
       +
       

     

       4
       +
       # Fill out these fields if you intend to generate HTML documentation or publish

     

       5
       +
       # your project to the Hex package manager.

     

       6
       +
       #

     

       7
       +
       # description = ""

     

       8
       +
       # licences = ["Apache-2.0"]

     

       9
       +
       # repository = { type = "github", user = "", repo = "" }

     

       10
       +
       # links = [{ title = "Website", href = "" }]

     

       11
       +
       #

     

       12
       +
       # For a full reference of all the available options, you can have a look at

     

       13
       +
       # https://gleam.run/writing-gleam/gleam-toml/.

     

       14
       +
       

     

       15
       +
       [dependencies]

     

       16
       +
       gleam_stdlib = ">= 0.44.0 and < 2.0.0"

     

       17
       +
       simplifile = ">= 2.3.0 and < 3.0.0"

     

       18
       +
       

     

       19
       +
       [dev-dependencies]

     

       20
       +
       gleeunit = ">= 1.0.0 and < 2.0.0"

+14

2025/4/gleam/manifest.toml

···

       1
       +
       # This file was generated by Gleam

     

       2
       +
       # You typically do not need to edit this file

     

       3
       +
       

     

       4
       +
       packages = [

     

       5
       +
         { name = "filepath", version = "1.1.2", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "filepath", source = "hex", outer_checksum = "B06A9AF0BF10E51401D64B98E4B627F1D2E48C154967DA7AF4D0914780A6D40A" },

     

       6
       +
         { name = "gleam_stdlib", version = "0.65.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "7C69C71D8C493AE11A5184828A77110EB05A7786EBF8B25B36A72F879C3EE107" },

     

       7
       +
         { name = "gleeunit", version = "1.7.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "CD701726CBCE5588B375D157B4391CFD0F2F134CD12D9B6998A395484DE05C58" },

     

       8
       +
         { name = "simplifile", version = "2.3.0", build_tools = ["gleam"], requirements = ["filepath", "gleam_stdlib"], otp_app = "simplifile", source = "hex", outer_checksum = "0A868DAC6063D9E983477981839810DC2E553285AB4588B87E3E9C96A7FB4CB4" },

     

       9
       +
       ]

     

       10
       +
       

     

       11
       +
       [requirements]

     

       12
       +
       gleam_stdlib = { version = ">= 0.44.0 and < 2.0.0" }

     

       13
       +
       gleeunit = { version = ">= 1.0.0 and < 2.0.0" }

     

       14
       +
       simplifile = { version = ">= 2.3.0 and < 3.0.0" }

+96

2025/4/gleam/src/main.gleam

···

       1
       +
       import gleam/bit_array

     

       2
       +
       import gleam/int

     

       3
       +
       import gleam/io

     

       4
       +
       import gleam/list

     

       5
       +
       import gleam/result

     

       6
       +
       import gleam/string

     

       7
       +
       import simplifile as file

     

       8
       +
       

     

       9
       +
       fn get_place(x, y, map, size) {

     

       10
       +
         case

     

       11
       +
           case x, y {

     

       12
       +
             _, -1 | -1, _ -> <<>>

     

       13
       +
             s, _ | _, s if s == size -> <<>>

     

       14
       +
       

     

       15
       +
             _, _ -> bit_array.slice(map, y * size + x, 1) |> result.unwrap(<<>>)

     

       16
       +
           }

     

       17
       +
         {

     

       18
       +
           <<"@">> -> 1

     

       19
       +
           _ -> 0

     

       20
       +
         }

     

       21
       +
       }

     

       22
       +
       

     

       23
       +
       fn part_1(map, size) {

     

       24
       +
         list.range(0, bit_array.byte_size(map) - 1)

     

       25
       +
         |> list.fold(0, fn(acc, pos) {

     

       26
       +
           let x = pos % size

     

       27
       +
           let y = pos / size

     

       28
       +
       

     

       29
       +
           let roll = get_place(x, y, map, size)

     

       30
       +
       

     

       31
       +
           let neighbours =

     

       32
       +
             get_place(x - 1, y - 1, map, size)

     

       33
       +
             + get_place(x, y - 1, map, size)

     

       34
       +
             + get_place(x + 1, y - 1, map, size)

     

       35
       +
             + get_place(x - 1, y, map, size)

     

       36
       +
             + get_place(x + 1, y, map, size)

     

       37
       +
             + get_place(x - 1, y + 1, map, size)

     

       38
       +
             + get_place(x, y + 1, map, size)

     

       39
       +
             + get_place(x + 1, y + 1, map, size)

     

       40
       +
       

     

       41
       +
           case roll, neighbours < 4 {

     

       42
       +
             1, True -> acc + 1

     

       43
       +
             _, _ -> acc

     

       44
       +
           }

     

       45
       +
         })

     

       46
       +
       }

     

       47
       +
       

     

       48
       +
       fn part_2(map, size, rolls) {

     

       49
       +
         let #(rolls, new_map) =

     

       50
       +
           list.range(0, bit_array.byte_size(map) - 1)

     

       51
       +
           |> list.fold(#(rolls, <<>>), fn(acc, pos) {

     

       52
       +
             let #(total, new_map) = acc

     

       53
       +
             let x = pos % size

     

       54
       +
             let y = pos / size

     

       55
       +
       

     

       56
       +
             let roll = get_place(x, y, map, size)

     

       57
       +
       

     

       58
       +
             let neighbours =

     

       59
       +
               get_place(x - 1, y - 1, map, size)

     

       60
       +
               + get_place(x, y - 1, map, size)

     

       61
       +
               + get_place(x + 1, y - 1, map, size)

     

       62
       +
               + get_place(x - 1, y, map, size)

     

       63
       +
               + get_place(x + 1, y, map, size)

     

       64
       +
               + get_place(x - 1, y + 1, map, size)

     

       65
       +
               + get_place(x, y + 1, map, size)

     

       66
       +
               + get_place(x + 1, y + 1, map, size)

     

       67
       +
       

     

       68
       +
             case roll, neighbours < 4 {

     

       69
       +
               1, True -> #(total + 1, bit_array.append(new_map, <<".">>))

     

       70
       +
               1, _ -> #(total, bit_array.append(new_map, <<"@">>))

     

       71
       +
               _, _ -> #(total, bit_array.append(new_map, <<".">>))

     

       72
       +
             }

     

       73
       +
           })

     

       74
       +
       

     

       75
       +
         case map == new_map {

     

       76
       +
           True -> rolls

     

       77
       +
           False -> part_2(new_map, size, rolls)

     

       78
       +
         }

     

       79
       +
       }

     

       80
       +
       

     

       81
       +
       pub fn main() {

     

       82
       +
         let assert Ok(input) = file.read(from: "../input.txt")

     

       83
       +
           as "Input file not found"

     

       84
       +
         let input =

     

       85
       +
           input |> string.trim |> string.split("\n") |> list.map(fn(v) { <<v:utf8>> })

     

       86
       +
         let size = list.length(input)

     

       87
       +
         let input = input |> list.fold(<<>>, fn(acc, l) { bit_array.append(acc, l) })

     

       88
       +
         // @ and .

     

       89
       +
       

     

       90
       +
         part_1(input, size)

     

       91
       +
         |> int.to_string

     

       92
       +
         |> io.println

     

       93
       +
         part_2(input, size, 0)

     

       94
       +
         |> int.to_string

     

       95
       +
         |> io.println

     

       96
       +
       }

2025/4/rust/Cargo.lock

···

       1
       +
       # This file is automatically @generated by Cargo.

     

       2
       +
       # It is not intended for manual editing.

     

       3
       +
       version = 4

     

       4
       +
       

     

       5
       +
       [[package]]

     

       6
       +
       name = "rust"

     

       7
       +
       version = "0.1.0"

2025/4/rust/Cargo.toml

···

       1
       +
       [package]

     

       2
       +
       name = "rust"

     

       3
       +
       version = "0.1.0"

     

       4
       +
       edition = "2024"

     

       5
       +
       

     

       6
       +
       [dependencies]

+106

2025/4/rust/src/main.rs

···

       1
       +
       use std::{

     

       2
       +
           fs::{self, File},

     

       3
       +
           io::Write,

     

       4
       +
           mem::swap,

     

       5
       +
       };

     

       6
       +
       

     

       7
       +
       fn to_img(warehouse: &Vec<u8>, size: usize, name: usize) {

     

       8
       +
           let mut bytes: Vec<u8> = [].to_vec();

     

       9
       +
           bytes.extend(format!("P5\n{size} {size}\n1\n").as_bytes());

     

       10
       +
           let mut i = size + 3;

     

       11
       +
           for _ in 0..size {

     

       12
       +
               for _ in 0..size {

     

       13
       +
                   bytes.push(*warehouse.get(i).unwrap());

     

       14
       +
                   i += 1;

     

       15
       +
               }

     

       16
       +
               i += 2;

     

       17
       +
           }

     

       18
       +
           let mut file = File::create(format!("out/{name}.pgm")).unwrap();

     

       19
       +
           file.write_all(&bytes).unwrap();

     

       20
       +
       }

     

       21
       +
       

     

       22
       +
       fn solve(

     

       23
       +
           mut warehouse: Vec<u8>,

     

       24
       +
           size: usize,

     

       25
       +
           part_2: bool,

     

       26
       +
           visualise: bool,

     

       27
       +
       ) -> u32 {

     

       28
       +
           if visualise {

     

       29
       +
               fs::create_dir_all("out").unwrap();

     

       30
       +
           }

     

       31
       +
       

     

       32
       +
           let pos = |x, y| y * (size + 2) + x;

     

       33
       +
       

     

       34
       +
           let sizep = size + 1;

     

       35
       +
       

     

       36
       +
           let mut new_warehouse = vec![0_u8; (size + 2).pow(2)];

     

       37
       +
       

     

       38
       +
           let mut rolls = 0;

     

       39
       +
       

     

       40
       +
           let mut i = 0;

     

       41
       +
           loop {

     

       42
       +
               for yo in 1..sizep {

     

       43
       +
                   let ym = yo - 1;

     

       44
       +
                   let yp = yo + 1;

     

       45
       +
                   for xo in 1..sizep {

     

       46
       +
                       let xm = xo - 1;

     

       47
       +
                       let xp = xo + 1;

     

       48
       +
       

     

       49
       +
                       unsafe {

     

       50
       +
                           let was = *warehouse.get_unchecked(pos(xo, yo)) == 1;

     

       51
       +
                           let neighbours = warehouse.get_unchecked(pos(xm, ym))

     

       52
       +
                               + warehouse.get_unchecked(pos(xo, ym))

     

       53
       +
                               + warehouse.get_unchecked(pos(xp, ym))

     

       54
       +
                               + warehouse.get_unchecked(pos(xm, yo))

     

       55
       +
                               + warehouse.get_unchecked(pos(xp, yo))

     

       56
       +
                               + warehouse.get_unchecked(pos(xm, yp))

     

       57
       +
                               + warehouse.get_unchecked(pos(xo, yp))

     

       58
       +
                               + warehouse.get_unchecked(pos(xp, yp));

     

       59
       +
                           *new_warehouse.get_unchecked_mut(pos(xo, yo)) =

     

       60
       +
                               match (was, neighbours < 4) {

     

       61
       +
                                   (true, true) => {

     

       62
       +
                                       rolls += 1;

     

       63
       +
                                       0

     

       64
       +
                                   }

     

       65
       +
                                   (true, false) => 1,

     

       66
       +
                                   (_, _) => 0,

     

       67
       +
                               };

     

       68
       +
                       }

     

       69
       +
                   }

     

       70
       +
               }

     

       71
       +
       

     

       72
       +
               if !part_2 || warehouse == new_warehouse {

     

       73
       +
                   break;

     

       74
       +
               }

     

       75
       +
       

     

       76
       +
               swap(&mut warehouse, &mut new_warehouse);

     

       77
       +
               i += 1;

     

       78
       +
               if visualise {

     

       79
       +
                   to_img(&warehouse, size, i);

     

       80
       +
               }

     

       81
       +
           }

     

       82
       +
           rolls

     

       83
       +
       }

     

       84
       +
       

     

       85
       +
       fn main() {

     

       86
       +
           let input = include_str!("../../input.txt").trim();

     

       87
       +
           let size = input.split_once("\n").expect("invalid input").0.len();

     

       88
       +
           // reads the input but adds a line of buffer on the sides

     

       89
       +
           let buffer_line = ".".repeat(size);

     

       90
       +
           let input: Vec<u8> = format!("{buffer_line}\n{input}\n{buffer_line}")

     

       91
       +
               .split("\n")

     

       92
       +
               .map(|line| -> Vec<u8> {

     

       93
       +
                   format!(".{}.", line)

     

       94
       +
                       .chars()

     

       95
       +
                       .map(|v| (v == '@') as u8)

     

       96
       +
                       .collect()

     

       97
       +
               })

     

       98
       +
               .flatten()

     

       99
       +
               .collect();

     

       100
       +
       

     

       101
       +
           let part_1 = solve(input.clone(), size, false, false);

     

       102
       +
           println!("Part 1: {}", part_1);

     

       103
       +
       

     

       104
       +
           let part_2 = solve(input.clone(), size, true, true);

     

       105
       +
           println!("Part 2: {}", part_2);

     

       106
       +
       }

+20

2025/5/gleam/gleam.toml

···

       1
       +
       name = "main"

     

       2
       +
       version = "1.0.0"

     

       3
       +
       

     

       4
       +
       # Fill out these fields if you intend to generate HTML documentation or publish

     

       5
       +
       # your project to the Hex package manager.

     

       6
       +
       #

     

       7
       +
       # description = ""

     

       8
       +
       # licences = ["Apache-2.0"]

     

       9
       +
       # repository = { type = "github", user = "", repo = "" }

     

       10
       +
       # links = [{ title = "Website", href = "" }]

     

       11
       +
       #

     

       12
       +
       # For a full reference of all the available options, you can have a look at

     

       13
       +
       # https://gleam.run/writing-gleam/gleam-toml/.

     

       14
       +
       

     

       15
       +
       [dependencies]

     

       16
       +
       gleam_stdlib = ">= 0.44.0 and < 2.0.0"

     

       17
       +
       simplifile = ">= 2.3.0 and < 3.0.0"

     

       18
       +
       

     

       19
       +
       [dev-dependencies]

     

       20
       +
       gleeunit = ">= 1.0.0 and < 2.0.0"

+14

2025/5/gleam/manifest.toml

···

       1
       +
       # This file was generated by Gleam

     

       2
       +
       # You typically do not need to edit this file

     

       3
       +
       

     

       4
       +
       packages = [

     

       5
       +
         { name = "filepath", version = "1.1.2", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "filepath", source = "hex", outer_checksum = "B06A9AF0BF10E51401D64B98E4B627F1D2E48C154967DA7AF4D0914780A6D40A" },

     

       6
       +
         { name = "gleam_stdlib", version = "0.65.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "7C69C71D8C493AE11A5184828A77110EB05A7786EBF8B25B36A72F879C3EE107" },

     

       7
       +
         { name = "gleeunit", version = "1.7.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "CD701726CBCE5588B375D157B4391CFD0F2F134CD12D9B6998A395484DE05C58" },

     

       8
       +
         { name = "simplifile", version = "2.3.0", build_tools = ["gleam"], requirements = ["filepath", "gleam_stdlib"], otp_app = "simplifile", source = "hex", outer_checksum = "0A868DAC6063D9E983477981839810DC2E553285AB4588B87E3E9C96A7FB4CB4" },

     

       9
       +
       ]

     

       10
       +
       

     

       11
       +
       [requirements]

     

       12
       +
       gleam_stdlib = { version = ">= 0.44.0 and < 2.0.0" }

     

       13
       +
       gleeunit = { version = ">= 1.0.0 and < 2.0.0" }

     

       14
       +
       simplifile = { version = ">= 2.3.0 and < 3.0.0" }

+117

2025/5/gleam/src/main.gleam

···

       1
       +
       import gleam/int

     

       2
       +
       import gleam/io

     

       3
       +
       import gleam/list

     

       4
       +
       import gleam/order.{Eq, Gt, Lt}

     

       5
       +
       import gleam/set

     

       6
       +
       import gleam/string

     

       7
       +
       import simplifile as file

     

       8
       +
       

     

       9
       +
       pub fn main() {

     

       10
       +
         let assert Ok(input) = file.read(from: "../input.txt")

     

       11
       +
           as "Input file not found"

     

       12
       +
         let assert [fresh_ranges, available] =

     

       13
       +
           input |> string.trim |> string.split("\n\n")

     

       14
       +
         let fresh_ranges =

     

       15
       +
           fresh_ranges

     

       16
       +
           |> string.trim

     

       17
       +
           |> string.split("\n")

     

       18
       +
           // |> list.reverse

     

       19
       +
           // |> list.drop(5)

     

       20
       +
           // |> list.take(12)

     

       21
       +
           // |> list.reverse

     

       22
       +
           |> list.map(fn(i) {

     

       23
       +
             let assert [from, to] = i |> string.trim |> string.split("-")

     

       24
       +
             let assert Ok(from) = int.parse(from)

     

       25
       +
             let assert Ok(to) = int.parse(to)

     

       26
       +
             // #(from / 100_000_000, to / 100_000_000)

     

       27
       +
             #(from, to)

     

       28
       +
           })

     

       29
       +
         let available =

     

       30
       +
           available

     

       31
       +
           |> string.split("\n")

     

       32
       +
           |> list.map(fn(i) {

     

       33
       +
             let assert Ok(id) = int.parse(i)

     

       34
       +
             id

     

       35
       +
           })

     

       36
       +
       

     

       37
       +
         available

     

       38
       +
         |> list.fold(0, fn(acc, i) {

     

       39
       +
           acc

     

       40
       +
           + case list.any(fresh_ranges, fn(range) { i >= range.0 && i <= range.1 }) {

     

       41
       +
             True -> 1

     

       42
       +
             False -> 0

     

       43
       +
           }

     

       44
       +
         })

     

       45
       +
         |> int.to_string

     

       46
       +
         |> io.println

     

       47
       +
       

     

       48
       +
         // nicer looking but idc

     

       49
       +
         // |> list.filter(fn(i) {

     

       50
       +
         //   list.any(fresh_ranges, fn(range) { i >= range.0 && i <= range.1 })

     

       51
       +
         // })

     

       52
       +
         // |> list.length

     

       53
       +
       

     

       54
       +
         // this thing crashed my computer btw im stupid

     

       55
       +
         // let haha =

     

       56
       +
         //   fresh_ranges

     

       57
       +
         //   |> list.fold(set.new(), fn(acc, i) {

     

       58
       +
         //     list.range(i.0, i.1) |> list.fold(acc, fn(acc, i) { set.insert(acc, i) })

     

       59
       +
         //   })

     

       60
       +
         // io.println(set.size(haha) |> int.to_string)

     

       61
       +
       

     

       62
       +
         let base_set: set.Set(#(Int, Int)) = set.new()

     

       63
       +
         fresh_ranges

     

       64
       +
         |> list.fold(base_set, fn(prev_seen_ranges, range) {

     

       65
       +
           let #(range, seen_ranges) =

     

       66
       +
             prev_seen_ranges

     

       67
       +
             |> set.fold(#(range, prev_seen_ranges), fn(acc, seen_range) {

     

       68
       +
               let #(range, seen_ranges) = acc

     

       69
       +
               // echo #(

     

       70
       +
               //   range,

     

       71
       +
               //   seen_range,

     

       72
       +
               //   int.compare(range.0, seen_range.0),

     

       73
       +
               //   int.compare(range.1, seen_range.1),

     

       74
       +
               //   int.compare(range.0, seen_range.1),

     

       75
       +
               //   int.compare(range.1, seen_range.0),

     

       76
       +
               // )

     

       77
       +
               // btw im refusing to ever do something better than this idc about your sorting and whatever this is the way shut the fuck up i spent three hours on this i will be using it

     

       78
       +
               case

     

       79
       +
                 int.compare(range.0, seen_range.0),

     

       80
       +
                 int.compare(range.1, seen_range.1),

     

       81
       +
                 int.compare(range.0, seen_range.1),

     

       82
       +
                 int.compare(range.1, seen_range.0)

     

       83
       +
               {

     

       84
       +
                 // if there's no touching

     

       85
       +
                 Gt, Gt, Gt, Gt | Lt, Lt, Lt, Lt -> #(range, seen_ranges)

     

       86
       +
                 // if it's inside of the other one

     

       87
       +
                 Gt, Lt, _, _ | Eq, Lt, _, _ | Gt, Eq, _, _ | Eq, Eq, _, _ -> #(

     

       88
       +
                   #(-1, -1),

     

       89
       +
                   seen_ranges,

     

       90
       +
                 )

     

       91
       +
                 // if the other one is inside it

     

       92
       +
                 Lt, Gt, _, _ | Eq, Gt, _, _ | Lt, Eq, _, _ -> #(

     

       93
       +
                   range,

     

       94
       +
                   set.delete(seen_ranges, seen_range),

     

       95
       +
                 )

     

       96
       +
                 // if it's touching on the left side make them touch

     

       97
       +
                 Lt, Lt, _, _ -> #(

     

       98
       +
                   #(range.0, seen_range.1),

     

       99
       +
                   set.delete(seen_ranges, seen_range),

     

       100
       +
                 )

     

       101
       +
                 // if it's touching on the right size make them touch

     

       102
       +
                 Gt, Gt, _, _ -> #(

     

       103
       +
                   #(seen_range.0, range.1),

     

       104
       +
                   set.delete(seen_ranges, seen_range),

     

       105
       +
                 )

     

       106
       +
               }

     

       107
       +
             })

     

       108
       +
       

     

       109
       +
           case range == #(-1, -1) {

     

       110
       +
             False -> seen_ranges |> set.insert(range)

     

       111
       +
             True -> seen_ranges

     

       112
       +
           }

     

       113
       +
         })

     

       114
       +
         |> set.fold(0, fn(acc, range) { acc + range.1 - range.0 + 1 })

     

       115
       +
         |> int.to_string

     

       116
       +
         |> io.println

     

       117
       +
       }

2025/5/rust/Cargo.lock

···

       1
       +
       # This file is automatically @generated by Cargo.

     

       2
       +
       # It is not intended for manual editing.

     

       3
       +
       version = 4

     

       4
       +
       

     

       5
       +
       [[package]]

     

       6
       +
       name = "rust"

     

       7
       +
       version = "0.1.0"

2025/5/rust/Cargo.toml

···

       1
       +
       [package]

     

       2
       +
       name = "rust"

     

       3
       +
       version = "0.1.0"

     

       4
       +
       edition = "2024"

     

       5
       +
       

     

       6
       +
       [dependencies]

+75

2025/5/rust/src/main.rs

···

       1
       +
       use std::{

     

       2
       +
           cmp::Ordering::{Equal as Eq, Greater as Gt, Less as Lt},

     

       3
       +
           collections::HashSet,

     

       4
       +
       };

     

       5
       +
       

     

       6
       +
       fn main() {

     

       7
       +
           let input = include_str!("../../input.txt").trim();

     

       8
       +
           let (fresh_ranges, available) = input.split_once("\n\n").unwrap();

     

       9
       +
           let fresh_ranges: Vec<(u64, u64)> = fresh_ranges

     

       10
       +
               .split("\n")

     

       11
       +
               .map(|i| {

     

       12
       +
                   let (a, b) = i.split_once("-").unwrap();

     

       13
       +
                   (a.parse().unwrap(), b.parse().unwrap())

     

       14
       +
               })

     

       15
       +
               .collect();

     

       16
       +
           let available = available.split("\n").map(|i| {

     

       17
       +
               let i: u64 = i.parse().unwrap();

     

       18
       +
               i

     

       19
       +
           });

     

       20
       +
       

     

       21
       +
           let part_1 = available.fold(0, |acc, i| {

     

       22
       +
               acc + fresh_ranges

     

       23
       +
                   .iter()

     

       24
       +
                   .any(|(start, end)| &i >= start && &i <= end) as u64

     

       25
       +
           });

     

       26
       +
           println!("Part 1: {}", part_1);

     

       27
       +
       

     

       28
       +
           let mut seen_ranges: HashSet<(u64, u64)> =

     

       29
       +
               HashSet::with_capacity(fresh_ranges.len());

     

       30
       +
           fresh_ranges.iter().for_each(|range| {

     

       31
       +
               let range = seen_ranges.clone().iter().try_fold(

     

       32
       +
                   *range,

     

       33
       +
                   |range: (u64, u64), seen_range: &(u64, u64)| {

     

       34
       +
                       // btw im refusing to ever do something better than this idc about your sorting and whatever this is the way shut the fuck up i spent three hours on this i will be using it

     

       35
       +
                       match (

     

       36
       +
                           range.0.cmp(&seen_range.0),

     

       37
       +
                           range.1.cmp(&seen_range.1),

     

       38
       +
                           range.0.cmp(&seen_range.1),

     

       39
       +
                           range.1.cmp(&seen_range.0),

     

       40
       +
                       ) {

     

       41
       +
                           // if there's no touching

     

       42
       +
                           (Gt, Gt, Gt, Gt) | (Lt, Lt, Lt, Lt) => Some(range),

     

       43
       +
                           // if it's inside of the other one

     

       44
       +
                           (Gt, Lt, _, _)

     

       45
       +
                           | (Eq, Lt, _, _)

     

       46
       +
                           | (Gt, Eq, _, _)

     

       47
       +
                           | (Eq, Eq, _, _) => None,

     

       48
       +
                           // if the other one is inside it

     

       49
       +
                           (Lt, Gt, _, _) | (Eq, Gt, _, _) | (Lt, Eq, _, _) => {

     

       50
       +
                               seen_ranges.remove(seen_range);

     

       51
       +
                               Some(range)

     

       52
       +
                           }

     

       53
       +
                           // if it's touching on the left side make them touch

     

       54
       +
                           (Lt, Lt, _, _) => {

     

       55
       +
                               seen_ranges.remove(seen_range);

     

       56
       +
                               Some((range.0, seen_range.1))

     

       57
       +
                           }

     

       58
       +
                           // if it's touching on the right size make them touch

     

       59
       +
                           (Gt, Gt, _, _) => {

     

       60
       +
                               seen_ranges.remove(seen_range);

     

       61
       +
                               Some((seen_range.0, range.1))

     

       62
       +
                           }

     

       63
       +
                       }

     

       64
       +
                   },

     

       65
       +
               );

     

       66
       +
       

     

       67
       +
               if range.is_some() {

     

       68
       +
                   seen_ranges.insert(range.unwrap());

     

       69
       +
               }

     

       70
       +
           });

     

       71
       +
           let part_2 = seen_ranges

     

       72
       +
               .into_iter()

     

       73
       +
               .fold(0, |acc, range| acc + range.1 - range.0 + 1);

     

       74
       +
           println!("Part 2: {}", part_2);

     

       75
       +
       }

+20

2025/6/gleam/gleam.toml

···

       1
       +
       name = "main"

     

       2
       +
       version = "1.0.0"

     

       3
       +
       

     

       4
       +
       # Fill out these fields if you intend to generate HTML documentation or publish

     

       5
       +
       # your project to the Hex package manager.

     

       6
       +
       #

     

       7
       +
       # description = ""

     

       8
       +
       # licences = ["Apache-2.0"]

     

       9
       +
       # repository = { type = "github", user = "", repo = "" }

     

       10
       +
       # links = [{ title = "Website", href = "" }]

     

       11
       +
       #

     

       12
       +
       # For a full reference of all the available options, you can have a look at

     

       13
       +
       # https://gleam.run/writing-gleam/gleam-toml/.

     

       14
       +
       

     

       15
       +
       [dependencies]

     

       16
       +
       gleam_stdlib = ">= 0.44.0 and < 2.0.0"

     

       17
       +
       simplifile = ">= 2.3.0 and < 3.0.0"

     

       18
       +
       

     

       19
       +
       [dev-dependencies]

     

       20
       +
       gleeunit = ">= 1.0.0 and < 2.0.0"

+14

2025/6/gleam/manifest.toml

···

       1
       +
       # This file was generated by Gleam

     

       2
       +
       # You typically do not need to edit this file

     

       3
       +
       

     

       4
       +
       packages = [

     

       5
       +
         { name = "filepath", version = "1.1.2", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "filepath", source = "hex", outer_checksum = "B06A9AF0BF10E51401D64B98E4B627F1D2E48C154967DA7AF4D0914780A6D40A" },

     

       6
       +
         { name = "gleam_stdlib", version = "0.65.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "7C69C71D8C493AE11A5184828A77110EB05A7786EBF8B25B36A72F879C3EE107" },

     

       7
       +
         { name = "gleeunit", version = "1.7.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "CD701726CBCE5588B375D157B4391CFD0F2F134CD12D9B6998A395484DE05C58" },

     

       8
       +
         { name = "simplifile", version = "2.3.0", build_tools = ["gleam"], requirements = ["filepath", "gleam_stdlib"], otp_app = "simplifile", source = "hex", outer_checksum = "0A868DAC6063D9E983477981839810DC2E553285AB4588B87E3E9C96A7FB4CB4" },

     

       9
       +
       ]

     

       10
       +
       

     

       11
       +
       [requirements]

     

       12
       +
       gleam_stdlib = { version = ">= 0.44.0 and < 2.0.0" }

     

       13
       +
       gleeunit = { version = ">= 1.0.0 and < 2.0.0" }

     

       14
       +
       simplifile = { version = ">= 2.3.0 and < 3.0.0" }

+140

2025/6/gleam/src/main.gleam

···

       1
       +
       import gleam/dict

     

       2
       +
       import gleam/int

     

       3
       +
       import gleam/io

     

       4
       +
       import gleam/list

     

       5
       +
       import gleam/result

     

       6
       +
       import gleam/string

     

       7
       +
       import simplifile as file

     

       8
       +
       

     

       9
       +
       type Part2Dict =

     

       10
       +
         dict.Dict(Int, Int)

     

       11
       +
       

     

       12
       +
       type Align {

     

       13
       +
         Left

     

       14
       +
         Right

     

       15
       +
       }

     

       16
       +
       

     

       17
       +
       type Operation {

     

       18
       +
         Sum

     

       19
       +
         Mul

     

       20
       +
       }

     

       21
       +
       

     

       22
       +
       type Part2Line {

     

       23
       +
         Part2Line(align: Align, op: Operation, numbers: List(String))

     

       24
       +
       }

     

       25
       +
       

     

       26
       +
       pub fn main() {

     

       27
       +
         let assert Ok(input) = file.read(from: "../input.txt")

     

       28
       +
           as "Input file not found"

     

       29
       +
         let input = input |> string.trim

     

       30
       +
         let input_pt_1 =

     

       31
       +
           list.fold(list.range(1, 10), input, fn(acc, _) {

     

       32
       +
             acc |> string.replace("  ", " ")

     

       33
       +
           })

     

       34
       +
       

     

       35
       +
         input_pt_1

     

       36
       +
         |> string.split("\n")

     

       37
       +
         |> list.map(fn(i) { string.trim(i) |> string.split(" ") })

     

       38
       +
         |> list.transpose

     

       39
       +
         |> list.map(fn(i) {

     

       40
       +
           let i = list.reverse(i)

     

       41
       +
           let assert Ok(s) = list.first(i)

     

       42
       +
           let i =

     

       43
       +
             list.drop(i, 1) |> list.map(fn(i) { int.parse(i) |> result.unwrap(0) })

     

       44
       +
           let r = case s {

     

       45
       +
             "+" -> int.sum(i)

     

       46
       +
             "*" -> list.reduce(i, int.multiply) |> result.unwrap(0)

     

       47
       +
             _ -> panic as "invalid"

     

       48
       +
           }

     

       49
       +
           r

     

       50
       +
         })

     

       51
       +
         |> int.sum

     

       52
       +
         |> int.to_string

     

       53
       +
         |> io.println

     

       54
       +
       

     

       55
       +
         let lines =

     

       56
       +
           input

     

       57
       +
           |> string.split("\n")

     

       58
       +
           |> list.reverse

     

       59
       +
         let assert Ok(last_line) = list.first(lines)

     

       60
       +
         let #(_, bounds) =

     

       61
       +
           { last_line <> "                         *" }

     

       62
       +
           |> string.to_graphemes

     

       63
       +
           |> list.index_fold(#(0, list.new()), fn(acc, char, i) {

     

       64
       +
             let #(bound_start, bounds) = acc

     

       65
       +
             case char {

     

       66
       +
               "*" | "+" if i > 0 -> #(i, list.append([#(bound_start, i - 1)], bounds))

     

       67
       +
               _ -> acc

     

       68
       +
             }

     

       69
       +
           })

     

       70
       +
         bounds

     

       71
       +
         |> list.index_fold(dict.new(), fn(d, bound, i) {

     

       72
       +
           let numbers =

     

       73
       +
             list.map(lines, fn(line) {

     

       74
       +
               string.slice(line, bound.0, bound.1 - bound.0)

     

       75
       +
             })

     

       76
       +
           let align =

     

       77
       +
             numbers

     

       78
       +
             |> list.drop(1)

     

       79
       +
             |> list.fold_until(Left, fn(res, number) {

     

       80
       +
               case

     

       81
       +
                 string.trim(number) == number,

     

       82
       +
                 string.trim_start(number) == number

     

       83
       +
               {

     

       84
       +
                 True, _ -> list.Continue(res)

     

       85
       +
                 _, True -> list.Stop(Left)

     

       86
       +
                 _, _ -> list.Stop(Right)

     

       87
       +
               }

     

       88
       +
             })

     

       89
       +
           let assert Ok(sign) = list.first(numbers)

     

       90
       +
           let sign = case string.trim(sign) {

     

       91
       +
             "*" -> Mul

     

       92
       +
             "+" -> Sum

     

       93
       +
             _ -> panic as sign

     

       94
       +
           }

     

       95
       +
           dict.insert(

     

       96
       +
             d,

     

       97
       +
             i,

     

       98
       +
             Part2Line(

     

       99
       +
               align,

     

       100
       +
               sign,

     

       101
       +
               numbers |> list.drop(1) |> list.map(string.trim) |> list.reverse,

     

       102
       +
             ),

     

       103
       +
           )

     

       104
       +
         })

     

       105
       +
         |> dict.to_list

     

       106
       +
         |> list.map(fn(i) { i.1 })

     

       107
       +
         |> list.map(fn(line) {

     

       108
       +
           let d: Part2Dict = dict.new()

     

       109
       +
           let d =

     

       110
       +
             line.numbers

     

       111
       +
             |> list.fold(d, fn(d, number) {

     

       112
       +
               let number_len = string.length(number)

     

       113
       +
               string.to_graphemes(number)

     

       114
       +
               |> list.index_fold(d, fn(d, digit, index) {

     

       115
       +
                 let assert Ok(digit) = digit |> int.parse

     

       116
       +
                 let pos = case line.align {

     

       117
       +
                   Right -> number_len - index

     

       118
       +
                   Left -> index

     

       119
       +
                 }

     

       120
       +
                 dict.insert(

     

       121
       +
                   d,

     

       122
       +
                   pos,

     

       123
       +
                   { dict.get(d, pos) |> result.unwrap(0) } * 10 + digit,

     

       124
       +
                 )

     

       125
       +
               })

     

       126
       +
             })

     

       127
       +
           let numbers =

     

       128
       +
             dict.to_list(d)

     

       129
       +
             |> list.map(fn(n) { n.1 })

     

       130
       +
       

     

       131
       +
           let r = case line.op {

     

       132
       +
             Sum -> int.sum(numbers)

     

       133
       +
             Mul -> list.reduce(numbers, int.multiply) |> result.unwrap(0)

     

       134
       +
           }

     

       135
       +
           r

     

       136
       +
         })

     

       137
       +
         |> int.sum

     

       138
       +
         |> int.to_string

     

       139
       +
         |> io.println

     

       140
       +
       }

+20

2025/7/gleam/gleam.toml

···

       1
       +
       name = "main"

     

       2
       +
       version = "1.0.0"

     

       3
       +
       

     

       4
       +
       # Fill out these fields if you intend to generate HTML documentation or publish

     

       5
       +
       # your project to the Hex package manager.

     

       6
       +
       #

     

       7
       +
       # description = ""

     

       8
       +
       # licences = ["Apache-2.0"]

     

       9
       +
       # repository = { type = "github", user = "", repo = "" }

     

       10
       +
       # links = [{ title = "Website", href = "" }]

     

       11
       +
       #

     

       12
       +
       # For a full reference of all the available options, you can have a look at

     

       13
       +
       # https://gleam.run/writing-gleam/gleam-toml/.

     

       14
       +
       

     

       15
       +
       [dependencies]

     

       16
       +
       gleam_stdlib = ">= 0.44.0 and < 2.0.0"

     

       17
       +
       simplifile = ">= 2.3.0 and < 3.0.0"

     

       18
       +
       

     

       19
       +
       [dev-dependencies]

     

       20
       +
       gleeunit = ">= 1.0.0 and < 2.0.0"

+14

2025/7/gleam/manifest.toml

···

       1
       +
       # This file was generated by Gleam

     

       2
       +
       # You typically do not need to edit this file

     

       3
       +
       

     

       4
       +
       packages = [

     

       5
       +
         { name = "filepath", version = "1.1.2", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "filepath", source = "hex", outer_checksum = "B06A9AF0BF10E51401D64B98E4B627F1D2E48C154967DA7AF4D0914780A6D40A" },

     

       6
       +
         { name = "gleam_stdlib", version = "0.65.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "7C69C71D8C493AE11A5184828A77110EB05A7786EBF8B25B36A72F879C3EE107" },

     

       7
       +
         { name = "gleeunit", version = "1.7.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "CD701726CBCE5588B375D157B4391CFD0F2F134CD12D9B6998A395484DE05C58" },

     

       8
       +
         { name = "simplifile", version = "2.3.0", build_tools = ["gleam"], requirements = ["filepath", "gleam_stdlib"], otp_app = "simplifile", source = "hex", outer_checksum = "0A868DAC6063D9E983477981839810DC2E553285AB4588B87E3E9C96A7FB4CB4" },

     

       9
       +
       ]

     

       10
       +
       

     

       11
       +
       [requirements]

     

       12
       +
       gleam_stdlib = { version = ">= 0.44.0 and < 2.0.0" }

     

       13
       +
       gleeunit = { version = ">= 1.0.0 and < 2.0.0" }

     

       14
       +
       simplifile = { version = ">= 2.3.0 and < 3.0.0" }

+93

2025/7/gleam/src/main.gleam

···

       1
       +
       import gleam/dict

     

       2
       +
       import gleam/int

     

       3
       +
       import gleam/io

     

       4
       +
       import gleam/list

     

       5
       +
       import gleam/set

     

       6
       +
       import gleam/string

     

       7
       +
       import simplifile as file

     

       8
       +
       

     

       9
       +
       pub fn main() {

     

       10
       +
         let assert Ok(input) = file.read(from: "../input.txt")

     

       11
       +
           as "Input file not found"

     

       12
       +
         let input = input |> string.trim |> string.split("\n")

     

       13
       +
         let assert Ok(start) = input |> list.first

     

       14
       +
         let start =

     

       15
       +
           start

     

       16
       +
           |> string.to_graphemes

     

       17
       +
           |> list.index_fold(0, fn(acc, v, i) {

     

       18
       +
             case v {

     

       19
       +
               "S" -> i

     

       20
       +
               _ -> acc

     

       21
       +
             }

     

       22
       +
           })

     

       23
       +
         let splitters_map =

     

       24
       +
           input

     

       25
       +
           |> list.drop(1)

     

       26
       +
           |> list.index_map(fn(line, i) {

     

       27
       +
             case i % 2 {

     

       28
       +
               0 -> ""

     

       29
       +
               _ -> line

     

       30
       +
             }

     

       31
       +
           })

     

       32
       +
           |> list.filter(fn(line) { line != "" })

     

       33
       +
           |> list.map(fn(line) {

     

       34
       +
             line

     

       35
       +
             |> string.to_graphemes

     

       36
       +
             |> list.index_fold(set.new(), fn(d, char, i) {

     

       37
       +
               case char {

     

       38
       +
                 "^" -> set.insert(d, i)

     

       39
       +
                 _ -> d

     

       40
       +
               }

     

       41
       +
             })

     

       42
       +
           })

     

       43
       +
         let #(_beams, times) =

     

       44
       +
           splitters_map

     

       45
       +
           |> list.fold(#(set.new() |> set.insert(start), 0), fn(acc, splitters) {

     

       46
       +
             let #(beams, times) = acc

     

       47
       +
             beams

     

       48
       +
             |> set.fold(#(beams, times), fn(acc, beam) {

     

       49
       +
               let #(beams, times) = acc

     

       50
       +
               case splitters |> set.contains(beam) {

     

       51
       +
                 False -> acc

     

       52
       +
                 True -> #(

     

       53
       +
                   beams

     

       54
       +
                     |> set.delete(beam)

     

       55
       +
                     |> set.insert(beam - 1)

     

       56
       +
                     |> set.insert(beam + 1),

     

       57
       +
                   times + 1,

     

       58
       +
                 )

     

       59
       +
               }

     

       60
       +
             })

     

       61
       +
           })

     

       62
       +
       

     

       63
       +
         times

     

       64
       +
         |> int.to_string

     

       65
       +
         |> io.println

     

       66
       +
       

     

       67
       +
         let timelines =

     

       68
       +
           splitters_map

     

       69
       +
           |> list.index_fold(

     

       70
       +
             dict.new() |> dict.insert("", start),

     

       71
       +
             fn(timelines, splitters, i) {

     

       72
       +
               echo i

     

       73
       +
               // echo #(timelines, splitters)

     

       74
       +
               timelines

     

       75
       +
               |> dict.fold(timelines, fn(timelines, timeline, beam) {

     

       76
       +
                 case splitters |> set.contains(beam) {

     

       77
       +
                   False -> timelines

     

       78
       +
                   True -> {

     

       79
       +
                     timelines

     

       80
       +
                     |> dict.delete(timeline)

     

       81
       +
                     |> dict.insert(timeline <> "-", beam - 1)

     

       82
       +
                     |> dict.insert(timeline <> "+", beam + 1)

     

       83
       +
                   }

     

       84
       +
                 }

     

       85
       +
               })

     

       86
       +
             },

     

       87
       +
           )

     

       88
       +
         echo timelines

     

       89
       +
         timelines

     

       90
       +
         |> dict.size

     

       91
       +
         |> int.to_string

     

       92
       +
         |> io.println

     

       93
       +
       }

2025/7/rust/Cargo.lock

···

       1
       +
       # This file is automatically @generated by Cargo.

     

       2
       +
       # It is not intended for manual editing.

     

       3
       +
       version = 4

     

       4
       +
       

     

       5
       +
       [[package]]

     

       6
       +
       name = "rust"

     

       7
       +
       version = "0.1.0"

2025/7/rust/Cargo.toml

···

       1
       +
       [package]

     

       2
       +
       name = "rust"

     

       3
       +
       version = "0.1.0"

     

       4
       +
       edition = "2024"

     

       5
       +
       

     

       6
       +
       [dependencies]

+62

2025/7/rust/src/main.rs

···

       1
       +
       use std::{

     

       2
       +
           collections::{HashMap, HashSet},

     

       3
       +
           mem::swap,

     

       4
       +
       };

     

       5
       +
       

     

       6
       +
       fn main() {

     

       7
       +
           let input = include_str!("../../input.txt").trim();

     

       8
       +
       

     

       9
       +
           let input: Vec<&str> = input.trim().split("\n").collect();

     

       10
       +
           // let width = input[0].len() as u64;

     

       11
       +
           let start = input[0].find("S").unwrap() as u64;

     

       12
       +
           let splitters_map: Vec<HashSet<u64>> = input[0..input.len()]

     

       13
       +
               .iter()

     

       14
       +
               .enumerate()

     

       15
       +
               .map(|(i, line)| if i % 2 != 0 { "" } else { line })

     

       16
       +
               .filter(|line| line != &"")

     

       17
       +
               .map(|line| {

     

       18
       +
                   line.chars()

     

       19
       +
                       .enumerate()

     

       20
       +
                       .fold(HashSet::new(), |mut s, (i, char)| {

     

       21
       +
                           if char == '^' {

     

       22
       +
                               s.insert(i as u64);

     

       23
       +
                           }

     

       24
       +
                           s

     

       25
       +
                       })

     

       26
       +
               })

     

       27
       +
               .collect();

     

       28
       +
       

     

       29
       +
           let timelines = {

     

       30
       +
               let mut timelines: HashMap<u64, u64> = HashMap::new();

     

       31
       +
               timelines.insert(start, 1);

     

       32
       +
               let mut timelines_new: HashMap<u64, u64> = HashMap::new();

     

       33
       +
               for splitters in splitters_map {

     

       34
       +
                   for (pos, amount) in &timelines {

     

       35
       +
                       if splitters.contains(&pos) {

     

       36
       +
                           let m1 = timelines_new.entry(pos - 1).or_insert(0);

     

       37
       +
                           *m1 += amount;

     

       38
       +
                           let p1 = timelines_new.entry(pos + 1).or_insert(0);

     

       39
       +
                           *p1 += amount;

     

       40
       +
                       } else {

     

       41
       +
                           let e = timelines_new.entry(*pos).or_insert(0);

     

       42
       +
                           *e += amount;

     

       43
       +
                       }

     

       44
       +
                   }

     

       45
       +
                   // for pos in 0..width as u64 {

     

       46
       +
                   //     if splitters.contains(&pos) {

     

       47
       +
                   //         print!("^");

     

       48
       +
                   //     } else if timelines_new.contains_key(&pos) {

     

       49
       +
                   //         print!("|");

     

       50
       +
                   //     } else {

     

       51
       +
                   //         print!(".");

     

       52
       +
                   //     }

     

       53
       +
                   // }

     

       54
       +
                   // print!("\n\n");

     

       55
       +
                   swap(&mut timelines, &mut timelines_new);

     

       56
       +
                   timelines_new.clear();

     

       57
       +
               }

     

       58
       +
               timelines

     

       59
       +
           };

     

       60
       +
           // println!("{:?}", timelines);

     

       61
       +
           println!("{}", timelines.iter().fold(0, |acc, v| { acc + v.1 }))

     

       62
       +
       }

+1 -1

template/rust/src/main.rs

···

       1
        
       fn main() {

     

       2
       -
           let input = include_str!("../../input.txt");

     

       3
        
       

     

       4
        
           println!("{}", &input);

     

       5
        
       }

···

       1
        
       fn main() {

     

       2
       +
           let input = include_str!("../../input.txt").trim();

     

       3
        
       

     

       4
        
           println!("{}", &input);

     

       5
        
       }

Compare changes