🎄 Year 2016 🔔 Day 03

Setup

input =
  File.read!("#{__DIR__}/../../../inputs/2016/day03.txt")
  |> String.split("\n", trim: true)
  |> Enum.map(&String.split(&1, "  ", trim: true))
  |> Enum.map(&Enum.map(&1, fn e -> String.to_integer(String.trim(e)) end))

Part 1

input
|> Enum.filter(fn [a, b, c] ->
  a + b > c && a + c > b && b + c > a
end)
|> Enum.count()

Part 2

input
|> List.zip()
|> Enum.map(&Tuple.to_list/1)
|> Enum.concat()
|> Enum.chunk_every(3)
|> Enum.filter(fn [a, b, c] ->
  a + b > c && a + c > b && b + c > a
end)
|> Enum.count()