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shiwork/math.exs

Created May 26, 2015 09:01
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elixir
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math.exs
defmodule Math do
def sum_list([head|tail]) do
sum_list(tail, head)
end
def sum_list([head|tail], accumulator) do
sum_list(tail, head + accumulator)
end
def sum_list([], accumulator) do
accumulator
end
end
IO.puts Math.sum_list([1, 2, 3])
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