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http://acm.hdu.edu.cn/showproblem.php?pid=1358Problem DescriptionFor each prefix of a given string S with N characters (each character... 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=1686Problem DescriptionThe French author Georges Perec (1936–1982) once wrote a book, La dis... 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=1711Problem DescriptionGiven two sequences of numbers : a[1], a[2], ...... , a[N], and b[1],... 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2203Problem Description人随着岁数的增长是越大越聪明还是越大越笨,这是一个值得全世界科学家思考的问题,同样的问题Eddy也一直在思考,因为他在很小的时候就知道亲和... 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2119Problem DescriptionGive you a matrix(only contains 0 or 1),every time you can select a r... 阅读全文