Advent of Code

This is a repository for all my Advent of Code solutions over the years. I've done them all in Go, but in 2022 I wanted to try things out in TypeScript since that's what I was using the most at that time in my work. There was one particular day on which my code was too slow. I converted it to Go, and it was 10 times faster! I decided I probably will stick with Go as my primary language in the future.

CLI

I wrote a small CLI wrapper around some other utilities out there to automate things I do on each day.

Usage

1. Install aoc-cli.
   • After you log in at https://adventofcode.com/, copy your session cookie and save it to .adventofcode.session.
2. Compile and install the binary with go install src/cli/ao.go.
3. For convenience, create a .ao.yaml file. Example:

   year: 2022
   day: 13
   language: go
   leaderboardId: 11111
   memberId: 11111

4. Copy the src/templates directory. This is the base directory for the Go templates to generate files for a new day.
5. Start a day with ao start -d 13.
   • Writes new files from the templates for the day.
   • Starts a timer.
   • Downloads puzzle input from the Advent of Code site. Formats the file to remove any trailing newline characters to keep files consistent.
   • When a language is specified, the timer is scoped to that language's directory. This can be a nice way to time how long it takes you to write solutions in each language.
6. End a part with ao end -d 13 -p 1.
   • Records how long it took you to solve the part. Prefers the timestamp from a private leaderboard (both the leaderboardId and the memberId must be specified in .ao.yaml). Otherwise, uses the current time to determine how long the part took to solve.
   • Upon completing Part 2, downloads the full puzzle description.
7. Run the solution for a day with ao run.
   • Specify the year or day with the --year and --day flags.
   • Run all days for a year with --day 0.

$ ao help
A wrapper around the aoc CLI https://github.com/scarvalhojr/aoc-cli

Usage:
  ao [command]

Available Commands:
  completion  Generate the autocompletion script for the specified shell
  end         Record end time for a part. Download puzzle description after completing part 2.
  help        Help about any command
  run         Run solutions for a year and day (runs all days when day is 0)
  start       Start solving parts for a given day. Generates a solution template, downloads the puzzle input, and writes a starting time.

Flags:
  -c, --config string        config file (default is $HOME/.ao.yaml)
  -d, --day int              event day (default 11)
  -h, --help                 help for ao
  -l, --language string      specify writing templated files for a single language (default "all")
  -o, --output-path string   path to output files to (default is solutions/{year}/{day})
  -p, --part int             part to record time for (default 1)
  -y, --year int             event year (default 2023)

Use "ao [command] --help" for more information about a command.