YYYYs

UID: 16642, Registered at 2025-4-7 20:21:51, last login at 2026-1-7 14:32:25, last active at 2026-2-5 10:26:16.

Solved 4 problems, RP: 5 (No. 11281)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4000
P3990
P3991
P3992
Recent Activities

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