执着的柯基

UID: 49981, Registered at 2026-8-15 15:07:59, last login at 2026-8-15 15:07:59, currently offline.

Solved 2 problems, RP: 13 (No. 17537)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P5197
P5198
Recent Activities

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

选择题: 1
模拟: 1