Precautions:
Generally speaking, the problem of America Match is rather thorny, and it is not easy for users to come up with an excellent scheme within four days. Therefore, in the competition, we must first come up with a feasible plan as a security model to solve.
If there is enough time, further deepen the model, consider more factors to enter the model, and deepen the problem step by step.
In the real scientific research process, the result analysis is a very important and indispensable part, as well as in American competitions. Detailed result analysis can easily improve the grade of the paper, which is the key difference between the international first prize and the international second prize, and even can impact the special prize by virtue of this.