yangruifeng

UID: 954, 注册于 2024-1-5 11:36:39, 最后登录于 2025-12-7 21:56:50, 目前离线.

解决了 413 道题目，RP: 247.03 (No. 218)

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该用户太懒，这里啥也没写 (´・ω・｀)
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This person is lazy and didn't join any contests or homework.
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