The national second prize of Huawei Cup Postgraduate Mathematical Model Competition can increase qualifications when looking for a job. At the same time, I have a good job in mathematics, and I can get a scholarship at school, 8000 yuan. The 17th Huawei Cup National Mathematical Modeling Competition for Postgraduates was held in September 2020 17-2 1. Dai Qinyang and Zhong Chao's research team won the second prize in mathematical modeling, and the instructors were Professor Zhang Kai and Professor Zhang Liming.