EricDykstra

Keybase proof

I hereby claim:

• I am ericdykstra on github.
• I am ericd (https://keybase.io/ericd) on keybase.
• I have a public key ASAv966Qu1nq0p8ibkcTXgdP5DYqGCMXbNA-FMJWrNKEQQo

To claim this, I am signing this object:

EricDykstra

defmodule Day1 do
  def main(file_path) do
    file_path |> File.read! |> process |> IO.puts
  end

  def process(input) do
    input
    |> String.split(", ")
    |> Enum.reduce(%{x: 0, y: 0, dir: "N"}, &reducer/2)
    |> extract_answer

EricDykstra

def change_state(xstate, d)
  directions = "NESW"
  i = "NESW".index(xstate)
  if d == "R"
    directions[i+1] ? directions[i+1] : "N"
  else
    directions[i-1] ? directions[i-1] : "W"
  end
end