Advent of code - Day 2

Section

win_matrice = [
  [3, 6, 0],
  [0, 3, 6],
  [6, 0, 3]
]

play_matrice = [
  [3, 1, 2],
  [1, 2, 3],
  [2, 3, 1]
]

inputs =
  "inputs/day2.txt"
  |> File.read!()
  |> String.trim()
  |> String.split("\n")

a_ = fn v -> v - 65 end
b_ = fn v -> v - 88 end

inputs
|> Enum.map(fn "" <> <> <> " " <> <> ->
  Enum.at([3, 6, 0], -a_.(a) + b_.(b)) + b_.(b) + 1
end)
|> Enum.sum()

inputs
|> Enum.map(fn "" <> <> <> " " <> <> ->
  Enum.at([3, 1, 2], -a_.(a) + b_.(b)) + b_.(b) * 3
end)
|> Enum.sum()