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Advent of Code Data

Important Badge Maven

Scala version of the python library by the same name.

Usage

ivy"io.github.bbstilson::aocd:0.1.4" // mill
"io.github.bbstilson" %% "aocd" % "0.1.4" // sbt

Next, export your session token or add it to ~/.aocd/token.

export AOC_SESSION_TOKEN="yoursessionstoken"

or

mkdir -p ~/.aocd
echo "yoursessionstoken" > ~/.aocd/token

Your token can be be found in your browser cookies after authenticating on the Advent of Code site.

Now go solve the problem!

import aocd.Problem

object Day1 extends Problem(2020, 1) {
  def run(input: List[String]): Unit = {
    // you can do it!
  }
}

Timing

Extending the Problem class provides you with 3 ways to time your functions: part1, part2, and time.

Consider the following fake problem:

object Day99 extends aocd.Problem(2020, 99) {

  def run(input: List[String]): Unit = {
    // First, we do some prep work on our input.
    val things = prep(input)
    // Then, run part 1.
    part1(things)
    // Finally, run part 2.
    part2(things)
    ()
  }

  def prep(input: List[String]): List[Char] = time ("prep", {
    // This takes a long time.
    Thread.sleep(2000)
    input.map(_.head)
  })

  def part1(chars: List[Char]): Int = part1 {
    // Part 1 is fast.
    Thread.sleep(50)
    chars.size
  }

  def part2(chars: List[Char]): Int = part2 {
    // Part 2 is kinda slow.
    Thread.sleep(500)
    chars.size
  }
}

Running this day would give us the following output:

output

  • Red: >1000ms
  • Yellow: >500ms
  • Green: < 100ms

Behind the Scenes

Your data is downloaded to ~/.aocd/<YYYY>/<DD>/input.txt. The download is only done once, subsequent runs will just read the data from that directory.

Publishing

Locally

git clone https://github.com/bbstilson/advent-of-code-data.git
cd advent-of-code-data
mill aocd.publishLocal

This is useful if you want to make edits and test them out.

Maven

  1. Update the publishVersion in build.sc (and in this readme)
  2. Run ./bin/release.sh

About

Download Advent of Code input data with ease.

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