qiushan

UID: 17, 注册于 2025-12-12 21:07:29, 最后登录于 2025-12-12 21:08:42, 最后活动于 2025-12-12 21:47:45.

解决了 2 道题目，RP: 11 (No. 1)

个人简介

该用户太懒，这里啥也没写 (´・ω・｀)
通过的题目
DR1
DR2
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.