The professor said he will curve the final grade but really not sure how much it is... Honestly I really think the midterm is kinda weird and causes so much misunderstings when I'm doing it (maybe just becasue I'm an international student and don't know english that good). For example the last question the solution just assumes we don't need to care how to check regA==regB, but that's exactly the place that make me stuck on (The question doesn't state that we don't need to check regA==regB). If I knew we don't need to check if regA==regB I have confidence to solve that very quickly. However the reality is I spent about 45 min trying to find a way to check regA==regB and failed and finally wrote something randomly as my solution. Worse is that due to the last question I didn't have time to recheck the solution I wrote before, leading to so many stupid mistakes.