Karina

UID: 930, Registered at 2025-4-6 13:50:24, last login at 2025-4-16 16:18:44, currently offline.

Solved 1 problems, RP: 5 (No. 415)

Bio

This person is lazy and didn't write anything.
Accepted Problems
B223
Recent Activities

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

前缀和: 1