* Have a teacher qualification certificate, and have a middle school teacher title for more than 5 years, or a senior middle school teacher title.

Professional knowledge and ability

* Have the ability of algorithm analysis and design, and be able to master and flexibly apply common algorithms.

* In-depth understanding of combinatorial mathematics and other mathematical knowledge of informatics olympiad.

* Have certain mathematical modeling ability.

* Have a deep understanding of "the relationship between data structure and algorithm" and be able to use it flexibly.

* Steps to master advanced knowledge of data structures and algorithms.

I hope I can solve your problem.