Another update from ingydotnet^djgoku

This commit is contained in:
Ingy döt Net 2015-11-18 06:14:39 +00:00
parent 91df62d461
commit 948b86eafa
7604 changed files with 108452 additions and 22726 deletions

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@ -4,11 +4,12 @@ defmodule Factorial do
def fac(n) when n > 0, do: n * fac(n - 1)
# Tail recursive function
def fac_tail(0), do: 1
def fac_tail(n), do: fac_tail(n, 1)
def fac_tail(0, acc), do: acc
def fac_tail(n, acc) when n > 0, do: fac_tail(n - 1, acc * n)
def fac_tail(1, acc), do: acc
def fac_tail(n, acc) when n > 1, do: fac_tail(n - 1, acc * n)
# Using Enumeration features
def fac_reduce(0), do: 0
def fac_reduce(0), do: 1
def fac_reduce(n) when n > 0, do: Enum.reduce(1..n, 1, &*/2)
end