I majored in software in college, which happened to be a course. To tell the truth, learning discrete mathematics is very useful for logical cultivation, but it will not affect your learning of computer-related knowledge. It should be said that even if you don't learn, it won't affect you. This subject is originally a tool for other disciplines to cultivate your problem-solving thinking ability. This course was a compulsory course in our university at the beginning, and I learned it well. It's a pity that I have forgotten all about it now. I really think it's no use for you to study hard. If you want to do some exercises with answers, you can go to the university library to see if there are any acquaintances. Of course you can borrow many reference books. Of course, you can also find math on Dangdang. This thing is different from other subjects. You must practice hard. Personally, I suggest you look for books on computer algorithms directly.