Oscar

UID: 548, 注册于 2021-10-3 19:46:16, 最后登录于 2024-3-28 19:00:01, 目前离线.

解决了 0 道题目，RP: 2 (No. 3507)

♂

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.