Compared with the new method of cultivating excellent students, elite mathematics has a great vision. A new way to cultivate excellent students: it is a little competitive and suitable for competition. The topic is exquisite and recommended. Difficulty: 2 stars. Great vision of elite mathematics: it is a competition book, but it is far less difficult than the competition. It can also be used as an introduction to the competition like a new method. Difficulty: 3 stars.