进取的歌手

UID: 51015, Registered at 2026-8-22 11:32:38, last login at 2026-8-22 11:32:38, last active at 2026-8-24 23:33:04.

Solved 2 problems, RP: 9.7 (No. 17240)

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