implementation of class SimpleQueue

SimpleQueue.rb

class SimpleQueue
  def initialize
    @queue = Array.new
  end

  #adds item to back of queue and returns the queue
  def enqueue(item)
    @queue.unshift(item)
  end

	#returns and removes item at the front of the queue
  def dequeue
    @queue.pop
  end

  def size
    @queue.length
  end
end