# Pastebin QoEmP8Gx
it was for a project euler question.  what do you guys think of this solution ? 
def fibonacci(n)
  return n if n <= 2
  fibonacci(n-1) + fibonacci(n-2)
end



n = 0
i = 0
arry = []
  while i < 4_000_000
    i = fibonacci(n)
    arry << i if i.even?
    n += 1
  end
arry.inject(&:+)