Dr_Du

UID: 36825, Registered at 2026-4-19 21:51:35, last login at 2026-5-9 21:16:53, last active at 2026-5-14 8:11:38.

Solved 1 problems, RP: 5 (No. 14946)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4939
Recent Activities

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

模拟: 1