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elixir reduce
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| defmodule Math do | |
| 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], 0) #=> 6 |
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