Tall man. The May 1st Mathematical Modeling requires participants to have a solid mathematical foundation, good computer application ability and innovative thinking, and its topic is also very difficult, which requires participants to have strong understanding ability. The "Five-One Cup" Mathematical Modeling Competition aims to cultivate students' teamwork ability, problem analysis and problem solving ability. The difficulty of winning the prize varies with the year and the level of the contestants, but overall, the difficulty of the competition is not low.