Day 10

Day 10: Pipe Maze

Day 10: Pipe Maze

Input

input = """
..F7.
.FJ|.
SJ.L7
|F--J
LJ...
"""

Part 1

defmodule Awesome do
  def run(input) do
    map = parse(input)
    start_position(map)
  end

  defp start_position(map) do
    Enum.find(map, fn {_, value} -> value == ?S end)
    |> elem(0)
  end

  defp parse(input) do
    list_of_lists =
      input
      |> String.split("\n", trim: true)
      |> Enum.map(&String.to_charlist/1)

    [head | _] = list_of_lists
    columns = Enum.count(head)
    rows = Enum.count(list_of_lists)

    for y <- 0..(rows - 1),
        x <- 0..(columns - 1),
        into: %{},
        do: {{y, x}, list_of_lists |> Enum.at(y) |> Enum.at(x)}
  end
end

Awesome.run(input)

puzzle_input = """
"""

Awesome.run(puzzle_input)

Part 2