Advent of code

This repository contains my solutions to the Advent of code challenge. All the challenges, data files and information about the Advent of code can be found on their website.

I will approach this challenge by using Python, creating 1 script per "day" of the challenge. I will first write a test using the example in the challenge and when the test passes I'll use the created function to generate the answer for the challenge.

Usage

To use this repostory and run the code, make sure you have a valid installation of Python (3.11). This project uses Poetry to manage dependencies. Use the following command to install all dependencies:

$ poetry install

Starting a new challenge

To start a new challenge, run the following command:

$ poetry run aoc new

This command will prompt for the year and day that you want to participate in. After that it will create a new test file and a new script file in the corresponding year and day folder. This command will also download the data file for the challenge and place it in the data folder.

Downloading data

You can run also download the data files manually with the poetry run aoc download command (available after installing this package). This will download all available data files for a particular year, day or all years and days (since 2015).

Testing

pytest is used as a testing framework and can be used to test an individual challenge or all challenges with these commands:

# All challenges
$ poetry run pytest

# All challenges for a particular year
$ poetry run pytest tests/year_2023/test_day_*.py

# Individual challenge
$ poetry run pytest tests/year_2023/test_day_1.py

To get the final output for a challenge, the corresponding file can be run using Python:

$ poetry run python src/aoc/year_2023/day_1.py

Development environment

Personal recommendation: Use pyenv to install Python, pyenv virtualenv to create an environment and poetry to install and manage dependencies.

Full walkthrough

# Install Python and make it the global Python
$ pyenv install 3.11.5
$ pyenv global 3.11.5

# Install Poetry
$ curl -sSL https://install.python-poetry.org | python -

# Set up and activate a new virtual environment
$ pyenv virtualenv 3.11.5 advent-of-code
$ pyenv local advent-of-code

# Install package
$ poetry install --with dev

# Start a new challenge
$ poetry run aoc new
# ...
# Select the year for which you'd like to make a challenge [2023]: 2023
# Select the day for which you'd like to make a challenge [1]: 1
# ...

# Update the tests to match the example in the challenge
# Update the code to pass the tests

# Run tests
$ poetry run pytest tests/year_2023/test_day_1.py

# Get results
$ poetry run python src/aoc/year_2023/day_1.py

# Submit the results to the Advent of code website