进取的歌手

UID: 51015, Registered at 2026-8-22 11:32:38, last login at 2026-9-3 14:04:34, currently offline.

Solved 2 problems, RP: 17.62 (No. 15646)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4761
P4762
Recent Activities

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

思维: 2