好奇的海豚

UID: 52959, Registered at 2026-9-1 20:08:12, last login at 2026-9-1 20:08:12, last active at just now.

Solved 2 problems, RP: 0 (No. ?)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P3990
P5145
Recent Activities

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

其他: 1
数学: 1