BC20270185

UID: 2224, Registered at 2024-9-3 10:03:22, last login at 2025-5-27 21:31:12, currently offline.

Solved 8 problems, RP: 28 (No. 507)

♂

Bio

只是一位普普通通的华南师范大学附属中学初中部的学生……
Recent Activities

This person is lazy and didn't join any contests or homework.