乐观的桃子

UID: 51193, Registered at 2026-8-23 22:11:47, last login at 2026-8-23 22:11:47, last active at 2026-8-31 0:38:14.

Solved 2 problems, RP: 10.6 (No. 17112)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4019
P5317
Recent Activities

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

选择题: 1