UID: 5544, Registered at 2026-3-13 11:15:16, last login at 2026-5-16 9:48:55, currently offline.
School : 杭州市萧山区城东小学
Solved 13 problems, RP: 50 (No. 1145)
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Bio
This person is lazy and didn't write anything. -
Recent Activities
This person is lazy and didn't join any contests or homework.