兰颂

UID: 640, 注册于 6 个月前, 最后登录于 6 个月前, 目前离线.

解决了 7 道题目，RP: 47 (No. 758)

该用户太懒，这里啥也没写 (´・ω・｀)

CH016

This person is lazy and didn't join any contests or homework.

信息学奥赛导学: 7