可可豆
UID: 9864, Registered at 2024-5-22 13:42:20, last login at 2025-4-22 20:25:24, currently offline.
Solved 19 problems, RP: 67.24 (No. 3387)
-
Bio
This person is lazy and didn't write anything. -
Recent Activities
This person is lazy and didn't join any contests or homework.