张先生

UID: 6947, Registered at 2024-1-30 21:39:01, last login at 2025-3-15 0:56:24, currently offline.

Solved 1 problems, RP: 0 (No. ?)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P500
Recent Activities

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

入门教程: 1