xcj100419
UID: 300, 注册于 2022-6-25 13:57:15, 最后登录于 2023-8-28 15:15:48, 目前离线.
解决了 1 道题目，RP: 3 (No. 139)
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个人简介
I AK IOI!!
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通过的题目
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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.