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题目链接 http://acm.split.hdu.edu.cn/showproblem.php?pid=5869 Problem Description This is a simple problem. The teacher gives Bob a list of problems about 阅读全文
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题目链接 http://acm.split.hdu.edu.cn/showproblem.php?pid=5875 Problem Description The shorter, the simpler. With this problem, you should be convinced of 阅读全文
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题目链接 http://acm.split.hdu.edu.cn/showproblem.php?pid=4283 Problem Description The TV shows such as You Are the One has been very popular. In order to 阅读全文
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题目链接 http://acm.split.hdu.edu.cn/showproblem.php?pid=5877 Problem Description You are given a rooted tree of N nodes, labeled from 1 to N. To the ith 阅读全文