The time passed so fast. Now it`s the last week of the first half of the semester. I learnt a lot in this course. The Big-O and Big-Omega were really two aporia in this course. And this is the definition of these two algorithm. The sorting time of the function always depends on the right algorithm. For instance, bubble sort, linear sort are different algorithm and they are both excellent algorithm. Without these stuff on studying, I wish I can get a good mark on final exam. Also wish everyone who take this course get good mark!