classes: lecturer. In terms of meaning, yes, but heapsort is a difficult and completely new method, while all the other classes are enthusiastic instructors and there are many students who do not understand, here the stranger insists not to take the exam but to say it again, the students can recover! curriculum. In terms of meaning, yes, but heapsort is a difficult and completely new method, while all the other classes are enthusiastic instructors and there are many students who do not understand, here the stranger insists not to take the exam but to say it again, the students can recover! facility. In terms of meaning, yes, but heapsort is a difficult and completely new method, while all the other classes are enthusiastic instructors and there are many students who do not understand, here the stranger insists not to take the exam but to say it again, the students can recover! general. In terms of meaning, yes, but heapsort is a difficult and completely new method, while all the other classes are enthusiastic instructors and there are many students who do not understand, here the stranger insists not to take the exam but to say it again, the students can recover!