爱笑的布偶

UID: 51291, Registered at 2026-8-24 16:17:58, last login at 2026-8-28 12:47:34, last active at 2026-9-4 6:44:44.

Solved 3 problems, RP: 4 (No. 22170)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4003
P3991
P4506
Recent Activities

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