# TODO: complete the decoration [x]
@quizzes.route("/quiz/<int:id>", methods=['GET', 'DELETE'])
def single_quiz(id):
    global _LOADED_QUIZZES
    result = ""

    # TODO: check if the quiz is an existing one [x]
    exists_quiz(id)

    if 'GET' == request.method:
        # TODO: retrieve a quiz <id> [x]
        result = Quiz.getQuestion(id)

    elif 'DELETE' == request.method:
        # TODO: delete a quiz and get back number of answered questions [x][x]
        # and total number of questions [x]

        _LOADED_QUIZZES.remove(id)

        result = jsonify({
            "answered_questions": quiz.currentQuestion,
            "total_questions": quiz.questions
        })

    return result