blob: f58cc4c7342ce2dbee4a37a4782ebde6792d677a (
plain) (
tree)
|
|
defmodule Fib do
def fib(1) do 1 end
def fib(2) do 2 end
def fib(n) do fib(n - 1) + fib(n - 2) end
def solve(list, count) do
if (n = fib(count)) < 4000000 do
[if rem(n, 2) == 0 do n else 0 end | list]
|> solve(count + 1)
else list end
end
end
IO.puts(Enum.sum(Fib.solve([0], 1)))
|