AoC 2022, day 1 - Challenge 2

aoc_day_1_challenge_2.exs

File.read!("day_1_input.txt")
|> String.split("\n", [trim: false])
|> Enum.reduce({[], []}, fn input, {full_list, current_list} -> 
  case input do
  "" -> {full_list ++ [current_list], []}
  _ -> integer_parsed_input = String.to_integer(input) 
       {full_list, current_list ++ [integer_parsed_input]}
  end
end)
|> elem(0)
|> Enum.reduce([], fn list, acc -> acc ++ [Enum.reduce(list, 0, &(&1 + &2))] end)
|> Enum.sort(&(&1 >= &2))
|> Enum.take(3)
|> Enum.reduce(0, fn integer, acc -> acc + integer end)