Post_11.1.rb

  def computer_spaces(cells)
    computer_spaces = []

    cells.each do |k,v|
      if cells[k] == "X"
      computer_spaces << k
      else
      false
      end
    end
    computer_spaces
  end

  def human_spaces(cells)
    human_spaces = []

    cells.each do |k,v|
      if cells[k] == "O"
      human_spaces << k
      else
      false
      end
    end
    human_spaces
  end