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Problem Description Chisa Yukizome works as a teacher in the school. She prepares many gifts, which consist of n kinds with a[i] quantities of each ki 阅读全文
posted @ 2016-08-14 18:52
惟愿。。。
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Description There are n distinct points in the plane, given by their integer coordinates. Find the number of parallelograms whose vertices lie on thes 阅读全文
posted @ 2016-08-14 17:13
惟愿。。。
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Problem Description Lweb has a string S.Oneday, he decided to transform this string to a new sequence. You need help him determine this transformation 阅读全文
posted @ 2016-08-14 14:57
惟愿。。。
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Problem Descripton Two planets named Haha and Xixi in the universe and they were created with the universe beginning.There is 73 days in Xixi a year a 阅读全文
posted @ 2016-08-14 14:46
惟愿。。。
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