BC20270185

UID: 2224, Registered at 2024-9-3 10:03:22, last login at 2025-6-16 14:36:05, currently offline.

Solved 8 problems, RP: 28 (No. 508)

♂

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.