Charles

UID: 742, Registered at 2021-3-31 20:56:06, last login at 2024-6-9 18:32:27, currently offline.

Solved 10 problems, RP: 50 (No. 1199)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P1

P2

P10
P11

P16

P18
P20

P22

P23
P24
Recent Activities

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