1, psychology. You can't sell yourself short just because you don't have training. Don't be lucky if you "hear that you will win the third prize in the province as long as you participate".

2. Time. Pay close attention to preparing for the exam these days, read more cases and papers; During the competition, try to sleep as little as possible for three days and three nights.

3. Basic questions. "There is no foundation", I think it is impossible. If I had no programming foundation, I might make a model. Can't model, may write; If you can't write, you can read English papers. Three people must do their best, and Qi Xin should work together.

4. results. No matter how you attend this year, it is strongly recommended that you prepare early next year, read more books on modeling and programming, attend more training and consult more teachers, so that you can hope to win the grand prize.

Wish you success!