b1Ack

UID: 27084, Registered at 2025-12-18 17:47:27, last login at 2025-12-18 19:18:29, currently offline.

Solved 6 problems, RP: 17 (No. 7651)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P3990

P3991
P3992

P3993
P4070

P4071
Recent Activities

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