changhaoye

UID: 41

注册于 2026-10-7 21:30:47, 最后登录于 2026-10-8 20:39:33, 最后活动于 2026-10-30 20:10:33.

解决了 0 道题目，RP: 2.7 (No. 19)

个人简介

这个人很懒，什么都没有写。
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.