Created
April 7, 2016 17:33
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write a sum function without an accumulator
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| # Write a sum function without an accumulator | |
| defmodule MyList do | |
| def sum([]), do: 0 | |
| def sum([x]), do: x | |
| def sum([ head | tail ]), do: head + sum(tail) | |
| end |
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