Day 05

Mix.install([
  :kino_aoc,
  :range_set
])

Parse

{:ok, puzzle_input} =
  KinoAOC.download_puzzle("2025", "5", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

[fresh, ingridients] = String.split(puzzle_input, "\n\n")

fresh =
  fresh
  |> String.split()
  |> Enum.map(fn range ->
    [a, b] = range |> String.split("-") |> Enum.map(&String.to_integer/1)

    a..b//1
  end)
  |> RangeSet.new()

ingridients =
  ingridients
  |> String.split()
  |> Enum.map(&String.to_integer/1)

Part 1

Enum.count(ingridients, & &1 in fresh)

Part 2

Enum.count(fresh)