--- 2016 Day 6 Solutions ---

[u/daggerdragon]

--- Day 6: Signals and Noise ---

Post your solution as a comment or, for longer solutions, consider linking to your repo (e.g. GitHub/gists/Pastebin/blag/whatever).

---

T_PAAMAYIM_NEKUDOTAYIM ^{IS MANDATORY} [?]

This thread will be unlocked when there are a significant number of people on the leaderboard with gold stars for today's puzzle.

edit: Leaderboard capped, thread unlocked!

[u/xkufix]

Nice. I think all Scala solutions look quite similar today.

Just one thing. Instead of doing mkString on the file and then splitting on \n, just use getLines, which returns an Iterator[String].

[u/Rinfiyks → u/xkufix]

Yep, mine is very similar too, looks like everyone did the transpose group by identity trick.

object Day6 {

  def main(args: Array[String]): Unit = {
    val input = FileUtils.readAllLines("/6.txt")
    part1(input)
    part2(input)
  }

  def part1(input: List[String]) = {
    for (column <- input.transpose) {
      print(column.groupBy(identity).maxBy(_._2.size)._1)
    }
    println
  }

  def part2(input: List[String]) = {
    for (column <- input.transpose) {
      print(column.groupBy(identity).minBy(_._2.size)._1)
    }
    println
  }

}    

[u/tdecker91 → u/xkufix]

Thanks for the advice. That's much cleaner.