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地址:http://acm.hdu.edu.cn/showproblem.php?pid=1325 Is It A Tree? Problem Description A tree is a well-known data structure that is either empty (null, 阅读全文
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More is better Problem Description Mr Wang wants some boys to help him with a project. Because the project is rather complex, the more boys come, the 阅读全文
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地址:http://acm.hdu.edu.cn/showproblem.php?pid=3635 Dragon Balls Five hundred years later, the number of dragon balls will increase unexpectedly, so it' 阅读全文
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地址:http://poj.org/problem?id=1988 Description Farmer John and Betsy are playing a game with N (1 <= N <= 30,000)identical cubes labeled 1 through N. T 阅读全文