• Bio

    作为一名蒟蒻,能成为这个域的域长,我要感谢我的爸爸和我的妈妈

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    This person is lazy and didn't join any contests or homework.
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    This person is lazy and didn't write any solutions.
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Problem Tags

2005
1
系统测试
1
NOIP 普及组
1
字符串
1
O2优化
1