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UID: 41130, Registered at 2026-5-18 23:21:30, last login at 2026-6-3 18:02:08, last active at 2026-6-4 15:34:58.

Solved 4 problems, RP: 4 (No. 17284)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4493
P4494
P4495
P4504
Recent Activities

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

入门教程: 3