Welcome to join CUMCM-2021.

The contest will start at 18:00, 9 September, 2021, and end at 20:00, 12 September, 2021 (Beijing Time).

The contest problems (English version) will be available from the website http://en.mcm.edu.cn, staring from 18:00,  9 September, 2021 (Beijing Time).

For University-level participants, please choose any one from Problems A, B or C.

For College-level participants, please choose any one from Problems A, B, C, D or E.

Your solution package should be uploaded through this website.

Enjoy！