Created
February 10, 2016 17:21
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| defmodule HappyNumberFinder do | |
| def get_sum(number) do | |
| numbers = Integer.digits(number) #=> [4, 9] | |
| squared_numbers = Enum.map(numbers, fn(x) -> x * x end) #=> [16, 81] | |
| sum = Enum.reduce(squared_numbers, fn(x, total) -> x + total end) #=> 97 | |
| end | |
| end |
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