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contents = File.read!("inputs/day1.txt")
codepoints = String.codepoints(contents)
floors =
Enum.map(codepoints, fn
"(" -> 1
")" -> -1
end)
|> Enum.scan(0, &(&1 + &2))
endFloor = List.last(floors)
firstBasement = Enum.find_index(floors, fn x -> x < 0 end) + 1
IO.puts("Final floor: #{endFloor}")
IO.puts("First basement on instruction: #{firstBasement}")
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