charles

UID: 819, Registered at 2023-3-17 17:20:25, last login at 2023-3-18 16:05:27, currently offline.

Solved 1 problems, RP: 4 (No. 5751)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P1082
Recent Activities

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

阿里系: 1