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https://github.com/spaenleh/aoc-swift-2024


https://github.com/spaenleh/aoc-swift-2024

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# Advent of Code 2024 in Swift



This is my solutions for Advent of code 2024 in Swift.



[![Language](https://img.shields.io/badge/language-Swift-red.svg)](https://swift.org)



Below is my current advancement in Advent of code:



| Day | Part 1 | Part 2 |

|:---|:---:|:---:|

| Day 1 | :star: | :star: |

| Day 2 | :star: | :star: |

| Day 3 | :star: | :star: |

| Day 4 | :star: | :star: |

| Day 5 | :star: (22min) | :star: (21min) |

| Day 6 | :star: |  |

| Day 7 | :star: (45min) | :star: (33min) |

| Day 8 | :star: (20min) | :star: (16min) |

| Day 9 | :star: (1h51) | :star: (43min) |

| Day 10 | :star: (28min) | :star: (3min) |

| Day 11 | :star: (28min) | :star: (1min) |

| Day 12 | :star: | :star: |

| Day 13 | :star: | :star: (5min) |

| Day 14 | :star: | :star: |

| Day 15 | :star: (1h04) |  |

| Day 16 |  |  |

| Day 17 | :star: |  |

| Day 18 |  |  |

| Day 19 |  |  |

| Day 20 |  |  |

| Day 21 |  |  |

| Day 22 |  |  |

| Day 23 |  |  |

| Day 24 |  |  |



## Out of order fun moments



A collection of moments I want to remember.



### When I finally saw the Christmas tree of day 14



![day 14 tree](./assets/day14-tree.png)



How to use this repo



Daily programming puzzles at [Advent of Code](https://adventofcode.com/), by

[Eric Wastl](http://was.tl/). This is a small example starter project for

building Advent of Code solutions.



## Usage



Swift comes with Xcode, or you can [install it](https://www.swift.org/install/)

on a supported macOS, Linux, or Windows platform.



If you're using Xcode, you can open this project by choosing File / Open and

select the parent directory.



If you prefer the command line, you can run the test suite with `swift test`,

and run the output with `swift run`.



If you're using Visual Studio Code to edit, you might find these Swift

extensions useful:



- [Swift](https://marketplace.visualstudio.com/items?itemName=sswg.swift-lang)

  (provides core language edit / debug / test features)

- [apple-swift-format](https://marketplace.visualstudio.com/items?itemName=vknabel.vscode-apple-swift-format)

  (supports the [swift-format](https://github.com/apple/swift-format) package)



## Challenges



The challenges assume three files (replace 00 with the day of the challenge).



- `Sources/Data/Day00.txt`: the input data provided for the challenge

- `Sources/Day00.swift`: the code to solve the challenge

- `Tests/Day00.swift`: any unit tests that you want to include



To start a new day's challenge, make a copy of these files, updating 00 to the

day number.



```diff

// Add each new day implementation to this array:

let allChallenges: [any AdventDay] = [

-  Day00()

+  Day00(),

+  Day01(),

]

```



Then implement part 1 and 2. The `AdventOfCode.swift` file controls which challenge

is run with `swift run`. Add your new type to its `allChallenges` array. By default

it runs the most recent challenge.



The `AdventOfCode.swift` file controls which day's challenge is run

with `swift run`. By default that runs the most recent challenge in the package.



To supply command line arguments use `swift run AdventOfCode`. For example,

`swift run -c release AdventOfCode --benchmark 3` builds the binary with full

optimizations, and benchmarks the challenge for day 3.



## Linting and Formatting



Challenge source code can be linted and formatted automatically using the

included dependency on `swift-format`.



Lint source code with the following command:



```shell

swift package lint-source-code

```



Format source code with the following command:



```shell

$ swift package format-source-code

Plugin ‘Format Source Code’ wants permission to write to the package directory.

Stated reason: “This command formats the Swift source files”.

Allow this plugin to write to the package directory? (yes/no)

```



To avoid the interactive prompt when formatting source code, use the

`--allow-writing-to-package-directory` flag.



```shell

swift package format-source-code --allow-writing-to-package-directory

```



swift-format will use the built-in default style to lint and format code. A

`.swift-format` configuration file can be used to customize the style used, see

[Configuration](https://github.com/apple/swift-format/blob/main/Documentation/Configuration.md)

for more details.