refr
UID: 699, Registered at 2025-11-17 17:08:20, last login at 2025-12-6 21:44:16, currently offline.
Solved 5 problems, RP: 7.9 (No. 553)
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Bio
This person is lazy and didn't write anything. -
Accepted Problems
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Recent Activities
This person is lazy and didn't join any contests or homework.
Problem Tags
- CSP
- 5
- 模拟
- 1