decfjf3NT3

UID: 27487, Registered at 2026-1-10 11:50:46, last login at 2026-4-28 10:58:12, currently offline.

Solved 4 problems, RP: 4 (No. 15859)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4219
P4220
P4221
P4495
Recent Activities

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

入门教程: 4