乐观的金鱼2099

UID: 52606, Registered at 2026-8-31 16:55:51, last login at 2026-8-31 16:55:51, last active at 2026-9-4 19:53:07.

Solved 2 problems, RP: 6 (No. 19986)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4003
P4683
Recent Activities

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

排序算法: 1