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UID: 32081, Registered at 2026-3-28 14:29:28, last login at 2026-4-1 14:19:20, last active at 2026-4-2 22:37:34.

Solved 4 problems, RP: 4 (No. 13285)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4219
P4220
P4221
P4222
Recent Activities

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

入门教程: 4