At present, the domestic mathematics competition is really not very important. Now the situation of the math contest is like this. It is roughly divided into professional group and non-professional group. Professional groups can be members of the Department of Mathematics and the Department of Information or non-professional groups. But for college students' competitions, it's better not to focus on books, and download more papers, which will help you more.

"Solution Set of University Olympic Mathematics Competition", "Guide to Higher Mathematics Competition", "Higher Mathematics Competition and Improvement" and so on will do. These books can be downloaded from the internet. The best is Putnam Mathematics Competition. You can read it. It is said that the above questions are extremely difficult. In fact, the domestic college mathematics competition is not very important. . . There is also no national league, which is organized by each school. . . . Far less valuable than the high school math league. However, college mathematical modeling competitions are more important and there are many types of competitions held. If you are willing to do this development, you can go to Mathematics China Network. There are a lot of mathematical modeling materials on it.