Elixir
I wasn't sure if the 13th floor thingie was also supposed to apply to basement levels. I wrote a solution that does it.
defmodule Floor do def get_real_floor(n) when n == 0, do: 0 def get_real_floor(n) when n > 13, do: n - 2 def get_real_floor(n) when n > 0, do: n - 1 def get_real_floor(n) when n < -13, do: n + 1 def get_real_floor(n), do: n end
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Elixir
I wasn't sure if the 13th floor thingie was also supposed to apply to basement levels. I wrote a solution that does it.