commit a7c6929948f157658d67338d71d36a45fea94f7c · aylac.top/advent_of_code

+18 -21

2025/7/gleam/src/main.gleam

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       import gleam/int

     

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       import gleam/io

     

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       import gleam/list

     

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       import gleam/result

     

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       import gleam/set

     

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       import gleam/string

     

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       import simplifile as file

     
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         let timelines =

     

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           splitters_map

     

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           |> list.fold(dict.new() |> dict.insert(0, start), fn(timelines, splitters) {

     

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             // echo #(timelines, splitters)

     

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             timelines

     

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

     

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               case splitters |> set.contains(beam) {

     

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                 False -> timelines

     

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                 True -> {

     

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                   timelines

     

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                   |> dict.delete(timeline)

     

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                   |> dict.insert(

     

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                     int.random(100_000_000_000_000_000_000_000),

     

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                     beam - 1,

     

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                   )

     

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                   |> dict.insert(

     

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                     int.random(100_000_000_000_000_000_000_000),

     

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                     beam + 1,

     

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                   )

     

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           |> list.index_fold(

     

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

     

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             fn(timelines, splitters, i) {

     

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               echo i

     

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               // echo #(timelines, splitters)

     

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               timelines

     

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

     

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                 case splitters |> set.contains(beam) {

     

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                   False -> timelines

     

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                   True -> {

     

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                     timelines

     

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                     |> dict.delete(timeline)

     

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

     

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

     

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                   }

     

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                 }

     

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               }

     

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             })

     

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           })

     

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               })

     

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             },

     

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           )

     

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         echo timelines

     

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         timelines

     

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         |> dict.size

2025/7/rust/Cargo.lock

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       # This file is automatically @generated by Cargo.

     

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       # It is not intended for manual editing.

     

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       version = 4

     

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       [[package]]

     

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       name = "rust"

     

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       version = "0.1.0"

2025/7/rust/Cargo.toml

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       [package]

     

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       name = "rust"

     

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       version = "0.1.0"

     

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       edition = "2024"

     

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       [dependencies]

+43

2025/7/rust/src/main.rs

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       use std::{

     

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           char,

     

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           collections::{HashMap, HashSet},

     

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       };

     

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       fn main() {

     

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

     

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

     

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           let start = input[0].find("S").unwrap() as u32;

     

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           let splitters_map: Vec<HashSet<u32>> = input[0..input.len()]

     

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               .iter()

     

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               .enumerate()

     

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

     

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

     

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               .map(|line| {

     

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                   line.chars()

     

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                       .enumerate()

     

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

     

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                           if char == '^' {

     

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                               s.insert(i as u32);

     

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                           }

     

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                           s

     

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                       })

     

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               })

     

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               .collect();

     

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           let timelines = {

     

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               let mut timelines: HashMap<String, u32> = HashMap::new();

     

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               timelines.insert("".to_string(), start);

     

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               for splitters in splitters_map {

     

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                   for (timeline, pos) in timelines.clone() {

     

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                       if splitters.contains(&pos) {

     

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                           timelines.remove(&timeline);

     

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                           timelines.insert(format!("{timeline}+"), pos + 1);

     

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                           timelines.insert(format!("{timeline}-"), pos - 1);

     

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                       }

     

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                   }

     

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               }

     

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               timelines

     

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           };

     

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           println!("{}", timelines.len());

     

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       }