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3732: Network 题目连接： http://www.lydsy.com/JudgeOnline/problem.php?id=3732 Description 给你N个点的无向图 (1 using namespace std; const int N=200500; int n,m; st 阅读全文
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Triangle 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5914 Description Mr. Frog has n sticks, whose lengths are 1,2, 3⋯n respectively. Wallice is a 阅读全文
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GCD is Funny 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5902 Description Alex has invented a new game for fun. There are n integers at a board an 阅读全文