comparing 5d6c118acc27e074cfb4846152cf4dd6a6a8fd8e and main on aylac.top/advent_of_code

+57 -48

2025/5/gleam/src/main.gleam

···

       45
       45
        
         |> int.to_string

     

       46
       46
        
         |> io.println

     

       47
       47
        
       

     

       48
       48
       +
         // nicer looking but idc

     

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

     

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

     

       51
       51
       +
         // })

     

       52
       52
       +
         // |> list.length

     

       53
       53
       +
       

     

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

     

       48
       55
        
         // let haha =

     

       49
       56
        
         //   fresh_ranges

     

       50
       57
        
         //   |> list.fold(set.new(), fn(acc, i) {

     
···

       53
       60
        
         // io.println(set.size(haha) |> int.to_string)

     

       54
       61
        
       

     

       55
       62
        
         let base_set: set.Set(#(Int, Int)) = set.new()

     

       56
       56
       -
         let ranges =

     

       57
       57
       -
           fresh_ranges

     

       58
       58
       -
           |> list.fold(base_set, fn(prev_seen_ranges, range) {

     

       59
       59
       -
             let #(range, seen_ranges) =

     

       60
       60
       -
               prev_seen_ranges

     

       61
       61
       -
               |> set.fold(#(range, prev_seen_ranges), fn(acc, seen_range) {

     

       62
       62
       -
                 let #(range, seen_ranges) = acc

     

       63
       63
       -
                 // echo #(

     

       64
       64
       -
                 //   range,

     

       65
       65
       -
                 //   seen_range,

     

       66
       66
       -
                 //   int.compare(range.0, seen_range.0),

     

       67
       67
       -
                 //   int.compare(range.1, seen_range.1),

     

       68
       68
       -
                 //   int.compare(range.0, seen_range.1),

     

       69
       69
       -
                 //   int.compare(range.1, seen_range.0),

     

       70
       70
       -
                 // )

     

       71
       71
       -
                 case

     

       72
       72
       -
                   int.compare(range.0, seen_range.0),

     

       73
       73
       -
                   int.compare(range.1, seen_range.1),

     

       74
       74
       -
                   int.compare(range.0, seen_range.1),

     

       75
       75
       -
                   int.compare(range.1, seen_range.0)

     

       76
       76
       -
                 {

     

       77
       77
       -
                   Gt, Gt, Gt, Gt | Lt, Lt, Lt, Lt -> #(range, seen_ranges)

     

       78
       78
       -
                   Eq, Eq, _, _ | Gt, Lt, _, _ | Eq, Lt, _, _ | Gt, Eq, _, _ -> #(

     

       79
       79
       -
                     #(0, 0),

     

       80
       80
       -
                     seen_ranges,

     

       81
       81
       -
                   )

     

       82
       82
       -
                   Eq, Gt, Eq, Gt | Lt, Eq, _, _ | Lt, Gt, _, _ -> #(

     

       83
       83
       -
                     range,

     

       84
       84
       -
                     set.delete(seen_ranges, seen_range),

     

       85
       85
       -
                   )

     

       86
       86
       -
                   Eq, Gt, _, _ -> #(range, set.delete(seen_ranges, seen_range))

     

       87
       87
       -
                   Lt, Lt, _, _ -> #(

     

       88
       88
       -
                     #(range.0, seen_range.1),

     

       89
       89
       -
                     set.delete(seen_ranges, seen_range),

     

       90
       90
       -
                   )

     

       91
       91
       -
                   Gt, Gt, _, _ -> #(

     

       92
       92
       -
                     #(seen_range.0, range.1),

     

       93
       93
       -
                     set.delete(seen_ranges, seen_range),

     

       94
       94
       -
                   )

     

       95
       95
       -
                 }

     

       96
       96
       -
               })

     

       63
       63
       +
         fresh_ranges

     

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

     

       65
       65
       +
           let #(range, seen_ranges) =

     

       66
       66
       +
             prev_seen_ranges

     

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

     

       68
       68
       +
               let #(range, seen_ranges) = acc

     

       69
       69
       +
               // echo #(

     

       70
       70
       +
               //   range,

     

       71
       71
       +
               //   seen_range,

     

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

     

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

     

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

     

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

     

       76
       76
       +
               // )

     

       77
       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
       78
       +
               case

     

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

     

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

     

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

     

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

     

       83
       83
       +
               {

     

       84
       84
       +
                 // if there's no touching

     

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

     

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

     

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

     

       88
       88
       +
                   #(-1, -1),

     

       89
       89
       +
                   seen_ranges,

     

       90
       90
       +
                 )

     

       91
       91
       +
                 // if the other one is inside it

     

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

     

       93
       93
       +
                   range,

     

       94
       94
       +
                   set.delete(seen_ranges, seen_range),

     

       95
       95
       +
                 )

     

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

     

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

     

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

     

       99
       99
       +
                   set.delete(seen_ranges, seen_range),

     

       100
       100
       +
                 )

     

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

     

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

     

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

     

       104
       104
       +
                   set.delete(seen_ranges, seen_range),

     

       105
       105
       +
                 )

     

       106
       106
       +
               }

     

       107
       107
       +
             })

     

       97
       108
        
       

     

       98
       98
       -
             case range == #(0, 0) {

     

       99
       99
       -
               False -> seen_ranges |> set.insert(range)

     

       100
       100
       -
               True -> seen_ranges

     

       101
       101
       -
             }

     

       102
       102
       -
           })

     

       103
       103
       -
         // echo ranges

     

       104
       104
       -
         ranges

     

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

     

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

     

       111
       111
       +
             True -> seen_ranges

     

       112
       112
       +
           }

     

       113
       113
       +
         })

     

       105
       114
        
         |> set.fold(0, fn(acc, range) { acc + range.1 - range.0 + 1 })

     

       106
       115
        
         |> int.to_string

     

       107
       116
        
         |> io.println

2025/5/rust/Cargo.lock

···

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

     

       2
       2
       +
       # It is not intended for manual editing.

     

       3
       3
       +
       version = 4

     

       4
       4
       +
       

     

       5
       5
       +
       [[package]]

     

       6
       6
       +
       name = "rust"

     

       7
       7
       +
       version = "0.1.0"

2025/5/rust/Cargo.toml

···

       1
       1
       +
       [package]

     

       2
       2
       +
       name = "rust"

     

       3
       3
       +
       version = "0.1.0"

     

       4
       4
       +
       edition = "2024"

     

       5
       5
       +
       

     

       6
       6
       +
       [dependencies]

+75

2025/5/rust/src/main.rs

···

       1
       1
       +
       use std::{

     

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

     

       3
       3
       +
           collections::HashSet,

     

       4
       4
       +
       };

     

       5
       5
       +
       

     

       6
       6
       +
       fn main() {

     

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

     

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

     

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

     

       10
       10
       +
               .split("\n")

     

       11
       11
       +
               .map(|i| {

     

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

     

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

     

       14
       14
       +
               })

     

       15
       15
       +
               .collect();

     

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

     

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

     

       18
       18
       +
               i

     

       19
       19
       +
           });

     

       20
       20
       +
       

     

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

     

       22
       22
       +
               acc + fresh_ranges

     

       23
       23
       +
                   .iter()

     

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

     

       25
       25
       +
           });

     

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

     

       27
       27
       +
       

     

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

     

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

     

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

     

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

     

       32
       32
       +
                   *range,

     

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

     

       34
       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
       35
       +
                       match (

     

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

     

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

     

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

     

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

     

       40
       40
       +
                       ) {

     

       41
       41
       +
                           // if there's no touching

     

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

     

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

     

       44
       44
       +
                           (Gt, Lt, _, _)

     

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

     

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

     

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

     

       48
       48
       +
                           // if the other one is inside it

     

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

     

       50
       50
       +
                               seen_ranges.remove(seen_range);

     

       51
       51
       +
                               Some(range)

     

       52
       52
       +
                           }

     

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

     

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

     

       55
       55
       +
                               seen_ranges.remove(seen_range);

     

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

     

       57
       57
       +
                           }

     

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

     

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

     

       60
       60
       +
                               seen_ranges.remove(seen_range);

     

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

     

       62
       62
       +
                           }

     

       63
       63
       +
                       }

     

       64
       64
       +
                   },

     

       65
       65
       +
               );

     

       66
       66
       +
       

     

       67
       67
       +
               if range.is_some() {

     

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

     

       69
       69
       +
               }

     

       70
       70
       +
           });

     

       71
       71
       +
           let part_2 = seen_ranges

     

       72
       72
       +
               .into_iter()

     

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

     

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

     

       75
       75
       +
       }

+20

2025/6/gleam/gleam.toml

···

       1
       1
       +
       name = "main"

     

       2
       2
       +
       version = "1.0.0"

     

       3
       3
       +
       

     

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

     

       5
       5
       +
       # your project to the Hex package manager.

     

       6
       6
       +
       #

     

       7
       7
       +
       # description = ""

     

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

     

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

     

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

     

       11
       11
       +
       #

     

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

     

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

     

       14
       14
       +
       

     

       15
       15
       +
       [dependencies]

     

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

     

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

     

       18
       18
       +
       

     

       19
       19
       +
       [dev-dependencies]

     

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

+14

2025/6/gleam/manifest.toml

···

       1
       1
       +
       # This file was generated by Gleam

     

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

     

       3
       3
       +
       

     

       4
       4
       +
       packages = [

     

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

     

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

     

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

     

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

     

       9
       9
       +
       ]

     

       10
       10
       +
       

     

       11
       11
       +
       [requirements]

     

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

     

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

     

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

+140

2025/6/gleam/src/main.gleam

···

       1
       1
       +
       import gleam/dict

     

       2
       2
       +
       import gleam/int

     

       3
       3
       +
       import gleam/io

     

       4
       4
       +
       import gleam/list

     

       5
       5
       +
       import gleam/result

     

       6
       6
       +
       import gleam/string

     

       7
       7
       +
       import simplifile as file

     

       8
       8
       +
       

     

       9
       9
       +
       type Part2Dict =

     

       10
       10
       +
         dict.Dict(Int, Int)

     

       11
       11
       +
       

     

       12
       12
       +
       type Align {

     

       13
       13
       +
         Left

     

       14
       14
       +
         Right

     

       15
       15
       +
       }

     

       16
       16
       +
       

     

       17
       17
       +
       type Operation {

     

       18
       18
       +
         Sum

     

       19
       19
       +
         Mul

     

       20
       20
       +
       }

     

       21
       21
       +
       

     

       22
       22
       +
       type Part2Line {

     

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

     

       24
       24
       +
       }

     

       25
       25
       +
       

     

       26
       26
       +
       pub fn main() {

     

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

     

       28
       28
       +
           as "Input file not found"

     

       29
       29
       +
         let input = input |> string.trim

     

       30
       30
       +
         let input_pt_1 =

     

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

     

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

     

       33
       33
       +
           })

     

       34
       34
       +
       

     

       35
       35
       +
         input_pt_1

     

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

     

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

     

       38
       38
       +
         |> list.transpose

     

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

     

       40
       40
       +
           let i = list.reverse(i)

     

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

     

       42
       42
       +
           let i =

     

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

     

       44
       44
       +
           let r = case s {

     

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

     

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

     

       47
       47
       +
             _ -> panic as "invalid"

     

       48
       48
       +
           }

     

       49
       49
       +
           r

     

       50
       50
       +
         })

     

       51
       51
       +
         |> int.sum

     

       52
       52
       +
         |> int.to_string

     

       53
       53
       +
         |> io.println

     

       54
       54
       +
       

     

       55
       55
       +
         let lines =

     

       56
       56
       +
           input

     

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

     

       58
       58
       +
           |> list.reverse

     

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

     

       60
       60
       +
         let #(_, bounds) =

     

       61
       61
       +
           { last_line <> "                         *" }

     

       62
       62
       +
           |> string.to_graphemes

     

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

     

       64
       64
       +
             let #(bound_start, bounds) = acc

     

       65
       65
       +
             case char {

     

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

     

       67
       67
       +
               _ -> acc

     

       68
       68
       +
             }

     

       69
       69
       +
           })

     

       70
       70
       +
         bounds

     

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

     

       72
       72
       +
           let numbers =

     

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

     

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

     

       75
       75
       +
             })

     

       76
       76
       +
           let align =

     

       77
       77
       +
             numbers

     

       78
       78
       +
             |> list.drop(1)

     

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

     

       80
       80
       +
               case

     

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

     

       82
       82
       +
                 string.trim_start(number) == number

     

       83
       83
       +
               {

     

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

     

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

     

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

     

       87
       87
       +
               }

     

       88
       88
       +
             })

     

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

     

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

     

       91
       91
       +
             "*" -> Mul

     

       92
       92
       +
             "+" -> Sum

     

       93
       93
       +
             _ -> panic as sign

     

       94
       94
       +
           }

     

       95
       95
       +
           dict.insert(

     

       96
       96
       +
             d,

     

       97
       97
       +
             i,

     

       98
       98
       +
             Part2Line(

     

       99
       99
       +
               align,

     

       100
       100
       +
               sign,

     

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

     

       102
       102
       +
             ),

     

       103
       103
       +
           )

     

       104
       104
       +
         })

     

       105
       105
       +
         |> dict.to_list

     

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

     

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

     

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

     

       109
       109
       +
           let d =

     

       110
       110
       +
             line.numbers

     

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

     

       112
       112
       +
               let number_len = string.length(number)

     

       113
       113
       +
               string.to_graphemes(number)

     

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

     

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

     

       116
       116
       +
                 let pos = case line.align {

     

       117
       117
       +
                   Right -> number_len - index

     

       118
       118
       +
                   Left -> index

     

       119
       119
       +
                 }

     

       120
       120
       +
                 dict.insert(

     

       121
       121
       +
                   d,

     

       122
       122
       +
                   pos,

     

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

     

       124
       124
       +
                 )

     

       125
       125
       +
               })

     

       126
       126
       +
             })

     

       127
       127
       +
           let numbers =

     

       128
       128
       +
             dict.to_list(d)

     

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

     

       130
       130
       +
       

     

       131
       131
       +
           let r = case line.op {

     

       132
       132
       +
             Sum -> int.sum(numbers)

     

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

     

       134
       134
       +
           }

     

       135
       135
       +
           r

     

       136
       136
       +
         })

     

       137
       137
       +
         |> int.sum

     

       138
       138
       +
         |> int.to_string

     

       139
       139
       +
         |> io.println

     

       140
       140
       +
       }

+20

2025/7/gleam/gleam.toml

···

       1
       1
       +
       name = "main"

     

       2
       2
       +
       version = "1.0.0"

     

       3
       3
       +
       

     

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

     

       5
       5
       +
       # your project to the Hex package manager.

     

       6
       6
       +
       #

     

       7
       7
       +
       # description = ""

     

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

     

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

     

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

     

       11
       11
       +
       #

     

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

     

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

     

       14
       14
       +
       

     

       15
       15
       +
       [dependencies]

     

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

     

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

     

       18
       18
       +
       

     

       19
       19
       +
       [dev-dependencies]

     

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

+14

2025/7/gleam/manifest.toml

···

       1
       1
       +
       # This file was generated by Gleam

     

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

     

       3
       3
       +
       

     

       4
       4
       +
       packages = [

     

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

     

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

     

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

     

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

     

       9
       9
       +
       ]

     

       10
       10
       +
       

     

       11
       11
       +
       [requirements]

     

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

     

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

     

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

+93

2025/7/gleam/src/main.gleam

···

       1
       1
       +
       import gleam/dict

     

       2
       2
       +
       import gleam/int

     

       3
       3
       +
       import gleam/io

     

       4
       4
       +
       import gleam/list

     

       5
       5
       +
       import gleam/set

     

       6
       6
       +
       import gleam/string

     

       7
       7
       +
       import simplifile as file

     

       8
       8
       +
       

     

       9
       9
       +
       pub fn main() {

     

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

     

       11
       11
       +
           as "Input file not found"

     

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

     

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

     

       14
       14
       +
         let start =

     

       15
       15
       +
           start

     

       16
       16
       +
           |> string.to_graphemes

     

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

     

       18
       18
       +
             case v {

     

       19
       19
       +
               "S" -> i

     

       20
       20
       +
               _ -> acc

     

       21
       21
       +
             }

     

       22
       22
       +
           })

     

       23
       23
       +
         let splitters_map =

     

       24
       24
       +
           input

     

       25
       25
       +
           |> list.drop(1)

     

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

     

       27
       27
       +
             case i % 2 {

     

       28
       28
       +
               0 -> ""

     

       29
       29
       +
               _ -> line

     

       30
       30
       +
             }

     

       31
       31
       +
           })

     

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

     

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

     

       34
       34
       +
             line

     

       35
       35
       +
             |> string.to_graphemes

     

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

     

       37
       37
       +
               case char {

     

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

     

       39
       39
       +
                 _ -> d

     

       40
       40
       +
               }

     

       41
       41
       +
             })

     

       42
       42
       +
           })

     

       43
       43
       +
         let #(_beams, times) =

     

       44
       44
       +
           splitters_map

     

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

     

       46
       46
       +
             let #(beams, times) = acc

     

       47
       47
       +
             beams

     

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

     

       49
       49
       +
               let #(beams, times) = acc

     

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

     

       51
       51
       +
                 False -> acc

     

       52
       52
       +
                 True -> #(

     

       53
       53
       +
                   beams

     

       54
       54
       +
                     |> set.delete(beam)

     

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

     

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

     

       57
       57
       +
                   times + 1,

     

       58
       58
       +
                 )

     

       59
       59
       +
               }

     

       60
       60
       +
             })

     

       61
       61
       +
           })

     

       62
       62
       +
       

     

       63
       63
       +
         times

     

       64
       64
       +
         |> int.to_string

     

       65
       65
       +
         |> io.println

     

       66
       66
       +
       

     

       67
       67
       +
         let timelines =

     

       68
       68
       +
           splitters_map

     

       69
       69
       +
           |> list.index_fold(

     

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

     

       71
       71
       +
             fn(timelines, splitters, i) {

     

       72
       72
       +
               echo i

     

       73
       73
       +
               // echo #(timelines, splitters)

     

       74
       74
       +
               timelines

     

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

     

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

     

       77
       77
       +
                   False -> timelines

     

       78
       78
       +
                   True -> {

     

       79
       79
       +
                     timelines

     

       80
       80
       +
                     |> dict.delete(timeline)

     

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

     

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

     

       83
       83
       +
                   }

     

       84
       84
       +
                 }

     

       85
       85
       +
               })

     

       86
       86
       +
             },

     

       87
       87
       +
           )

     

       88
       88
       +
         echo timelines

     

       89
       89
       +
         timelines

     

       90
       90
       +
         |> dict.size

     

       91
       91
       +
         |> int.to_string

     

       92
       92
       +
         |> io.println

     

       93
       93
       +
       }

2025/7/rust/Cargo.lock

···

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

     

       2
       2
       +
       # It is not intended for manual editing.

     

       3
       3
       +
       version = 4

     

       4
       4
       +
       

     

       5
       5
       +
       [[package]]

     

       6
       6
       +
       name = "rust"

     

       7
       7
       +
       version = "0.1.0"

2025/7/rust/Cargo.toml

···

       1
       1
       +
       [package]

     

       2
       2
       +
       name = "rust"

     

       3
       3
       +
       version = "0.1.0"

     

       4
       4
       +
       edition = "2024"

     

       5
       5
       +
       

     

       6
       6
       +
       [dependencies]

+62

2025/7/rust/src/main.rs

···

       1
       1
       +
       use std::{

     

       2
       2
       +
           collections::{HashMap, HashSet},

     

       3
       3
       +
           mem::swap,

     

       4
       4
       +
       };

     

       5
       5
       +
       

     

       6
       6
       +
       fn main() {

     

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

     

       8
       8
       +
       

     

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

     

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

     

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

     

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

     

       13
       13
       +
               .iter()

     

       14
       14
       +
               .enumerate()

     

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

     

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

     

       17
       17
       +
               .map(|line| {

     

       18
       18
       +
                   line.chars()

     

       19
       19
       +
                       .enumerate()

     

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

     

       21
       21
       +
                           if char == '^' {

     

       22
       22
       +
                               s.insert(i as u64);

     

       23
       23
       +
                           }

     

       24
       24
       +
                           s

     

       25
       25
       +
                       })

     

       26
       26
       +
               })

     

       27
       27
       +
               .collect();

     

       28
       28
       +
       

     

       29
       29
       +
           let timelines = {

     

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

     

       31
       31
       +
               timelines.insert(start, 1);

     

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

     

       33
       33
       +
               for splitters in splitters_map {

     

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

     

       35
       35
       +
                       if splitters.contains(&pos) {

     

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

     

       37
       37
       +
                           *m1 += amount;

     

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

     

       39
       39
       +
                           *p1 += amount;

     

       40
       40
       +
                       } else {

     

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

     

       42
       42
       +
                           *e += amount;

     

       43
       43
       +
                       }

     

       44
       44
       +
                   }

     

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

     

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

     

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

     

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

     

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

     

       50
       50
       +
                   //     } else {

     

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

     

       52
       52
       +
                   //     }

     

       53
       53
       +
                   // }

     

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

     

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

     

       56
       56
       +
                   timelines_new.clear();

     

       57
       57
       +
               }

     

       58
       58
       +
               timelines

     

       59
       59
       +
           };

     

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

     

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

     

       62
       62
       +
       }

Compare changes