week #10: impressions of week 9

Last week, we just finished test 2, and again, I feel regretful on how I prepare for the test. I remember that when I was preparing for the first test, it was so confused to me because which way will the instructor test on and what the difficulty it is. Therefore, what I did for test 1 is to look over the lecture in slides and do past test. I didn't focus too much on lab exercise at that time, which, surprisingly, gave me a pretty good mark. However, after I looked over my test, I was like I should have done more on lab exercise and my mark could be even higher. However, this time when I was preparing for the second test, I totally forgot about that, and again, I started reviewing the test by looking over the slides and then past tests, which is exactly the way I was using in the first test. How stupid I am to have the same mistake twice. I can tell that the grade of my second test will not be as good as my first test this time. Re-doing the lab exercise is really helpful not only for preparing for tests but also for applying the new knowledge which was taught in lecture into real problems. Due to the lab, I am able to understand the course. For me, I can't make the same mistake three times. For my final exam, the first thing to do is to re_do the lab exercise based on what we've learned.
Also, unlike the last week in which we learned about how to mutate the linked list, this week, we came into a harder lever, which is to mutate the BTNode by writing insert and delete functions along with the step of algorithm, which pretty helpful.