廿一

UID: 1009, Registered at 2026-10-14 14:34:51, last login at 2026-10-14 14:34:51, currently offline.

Solved 5 problems, RP: 13 (No. 349)

Bio

This person is lazy and didn't write anything.
Accepted Problems
T1000

T1001
T1002

T1007
T1008
Recent Activities

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