input_str = input("请输入肥仔快乐水毫升数量和学生的数量,用冒号隔开：") n, t = map(float, input_str.split()) drink_pap_number = n / t need_pap_cup = n * 2 print(f{"drink_pap_number:.3f"}) print(int(need_pap_cup))