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hauleth/advent1.exs

Created December 2, 2017 16:56
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advent1.exs
defmodule Advent1 do
def sum([h|_]=list),do: do_sum(list++[h],0)
defp do_sum([_],sum),do: sum
defp do_sum([a|[a|_]=rest],sum),do: do_sum(rest,sum+a-?0)
defp do_sum([_|rest],sum),do: do_sum(rest,sum)
end
IO.puts Advent1.sum to_charlist IO.read :all
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