AOC 2025 Day 3

Section

defmodule Day03 do
  def data(:test) do
    ~s(987654321111111
811111111111119
234234234234278
818181911112111)
    ~s(987654321111111)
  end

  def data(:real) do
    File.read!("day_03.dat")
  end

  defp prep(data) do
    String.trim(data)
    |> String.split("\n")
    |> Enum.map(&(String.to_integer(&1) |> Integer.digits()))
  end

  def part_01(banks) do
    prep(banks)
    |> Enum.map(fn bank ->
      Enum.reduce(bank, %{first: 0, second: nil, last: 0, dir: nil}, fn _battery, acc ->
        acc
      end)
    end)
  end
end

Day03.data(:test)
|> Day03.part_01()