Day 1

Section

test_input = """
1000
2000
3000

4000

5000
6000

7000
8000
9000

10000
"""

input = File.read!("./day1_input.txt")

defmodule Challenge do
  def parse_input(input) do
    input
    |> String.split("\n\n", trim: true)
    |> Enum.map(fn elf_str ->
      elf_str
      |> String.split("\n", trim: true)
      |> Enum.map(&String.to_integer/1)
    end)
  end
end

data_per_elf = Challenge.parse_input(input)

data_per_elf
|> Enum.map(&Enum.sum/1)
|> Enum.max()

data_per_elf
|> Enum.map(&Enum.sum/1)
|> Enum.sort(:desc)
|> Enum.take(3)
|> Enum.sum()