Jack

UID: 1422, Registered at 2022-5-4 10:36:59, last login at 2024-6-9 18:33:55, currently offline.

Solved 5 problems, RP: 25 (No. 1498)

Bio

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

P2
P3

P4
P5
Recent Activities

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