I participated. Various provinces and cities have successively held the preliminaries of the national senior high school mathematics league, and Beijing, Jilin, Fujian, Gansu, Guangxi, Jilin, Sichuan, Xinjiang, Zhejiang, Chongqing and other provinces have announced the real questions of the preliminaries. Jilin Province participated in the 2022 National Mathematics High School League. The national high school mathematics competition is a higher-level mathematics competition in China, and its status is much higher than that held by the provinces themselves.