KN18

UID: 256, 注册于 2026-4-14 18:26:14, 最后登录于 2026-5-25 18:08:32, 目前离线.

解决了 0 道题目，RP: 0 (No. ?)

个人简介

回首向来萧瑟处，归去，既无风雨也无晴
最近活动

This person is lazy and didn't join any contests or homework.
最近编写的题解

This person is lazy and didn't write any solutions.