摘要：
zxa and xor 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5683 Description zxa had a great interest in exclusive disjunction(i.e. XOR) recently, the 阅读全文
posted @ 2016-05-15 19:00
qscqesze
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zxa and leaf 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5682 Description zxa have an unrooted tree with n nodes, including (n−1) undirected edges 阅读全文
posted @ 2016-05-15 18:48
qscqesze
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zxa and set 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=4681 Description zxa has a set A={a1,a2,⋯,an}, which has n elements and obviously (2n−1) n 阅读全文
posted @ 2016-05-15 18:18
qscqesze
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