侯延康

UID: 20743, 注册于 2023-8-5 7:50:27, 最后登录于 2023-8-5 8:08:01, 目前离线.

解决了 0 道题目，RP: 7 (No. 2649)

个人简介

该用户太懒，这里啥也没写 (´・ω・｀)
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.