Advent of Code. Day 2.

advent-2.ex

result = Enum.reduce(tests, {0, 0}, fn (x, {paper, ribbon}) ->
	[l, w, h] = String.split(x, "x") |> Enum.map(fn n ->
		{number, _ } = Integer.parse(n)
		number
	end)

	[a, b | _ ] = Enum.sort([l, w, h])

	paper = paper + (2*l*w + 2*w*h + 2*h*l) + (a * b)
	ribbon = ribbon + (l * w * h) + ((a * 2) + (b * 2))

	{paper, ribbon}
end)

IO.inspect result