Welcome to join CUMCM-2025.

The contest will start at 18:00, 04 September, 2025, and end at 20:00, 7 September, 2025 (Beijing Time).

The contest problems (English version) will be available from the website http://en.mcm.edu.cn.

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.

For details of registration please see http://en.mcm.edu.cn/html_en/node/c2276b547ec45e5dc4d7a9c1143678d3.html

Enjoy！

(For more details, please refer to the attached file.)