advent-of-code

advent-of-code

This repository contains my Go solutions for Advent of Code programming challenges, along with related library code and advent.sh, a shell script that makes various common tasks easier.

Usage

In order for the library code to be able to download input, $HOME/.advent-of-code-session should contain the value of the session cookie that gets set for the .adventofcode.com domain after authenticating with the website. The session needs to be updated every year or two.

I have a function similar to the following declared in my shell (zsh):

advent() {
  case "$1" in
    -h|--help|check|checkall|help|input|run|save|stdin|web)
      $HOME/advent-of-code/advent.sh "$@"
      ;;
    *)
      cd "$($HOME/advent-of-code/advent.sh "$@")"
      ;;
  esac
}

This lets me run various commands like the following:

• advent today - Move to the directory for today's puzzle.
• advent web - Open today's puzzle in a web browser.
• advent run - Run main.go in the current directory with real input.
• advent stdin <example.txt - Run main.go with other input.
• advent input - Print today's input.
• advent save - Run main.go and save its output under answers/.
• advent check - Run main.go and compare its output against saved output.

Copyright

The original puzzles and corresponding text (portions of which are sometimes quoted within comments in my solutions) are copyrighted by Advent of Code. From https://adventofcode.com/about:

Advent of Code is a registered trademark in the United States. The design elements, language, styles, and concept of Advent of Code are all the sole property of Advent of Code and may not be replicated or used by any other person or entity without express written consent of Advent of Code. Copyright 2015-2022 Advent of Code. All rights reserved.

You may link to or reference puzzles from Advent of Code in discussions, classes, source code, printed material, etc., even in commercial contexts. Advent of Code does not claim ownership or copyright over your solution implementation.