Tall man. Based on the western regions (Yunnan, Guizhou, Sichuan, Chongqing, Shaanxi, Gansu, Ningxia, etc.). ), the Youth Olympic Games Western Invitational Tournament focuses on selecting and cultivating students, which is an organic unity of educational equity in the western region. Because it is jointly organized by the World Youth Olympic Mathematics Organizing Committee, it contains a lot of gold. The Western Invitational Tournament of Youth Olympic Games is a large-scale mathematics competition, which has been held once a year since 20001,mainly for the western region of China, aiming at encouraging more western students to participate in mathematics exploration and promoting the development of mathematics education in the western region.