练习lx

UID: 41428, Registered at 2026-5-21 0:43:56, last login at 2026-5-25 15:29:14, currently offline.

Solved 1 problems, RP: 5 (No. 16270)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P14199
Recent Activities

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

模拟: 1