题目连接http://acm.hdu.edu.cn/showproblem.php?pid=3549Flow ProblemDescriptionNetwork flow is a well-known difficult problem for ACMers. Given a graph, you...
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其他好文 时间:
2015-09-08 21:53:08
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152
Graph Valid TreeGivennnodes labeled from0ton - 1and a list of undirected edges (each edge is a pair of nodes), write a function to check whether these...
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其他好文 时间:
2015-09-06 12:31:51
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169
给一个n个节点n条边的无向图G,试判断图中是否存在哈密顿路径。若G中存在哈密顿路径l,则路径端点度数不小于1,其余点度数不小于2。则G存在哈密顿路径的必要条件:1)G连通;2)G中度数为1的点不超过两个。考虑到简单连通图中边的数目m不超过n,1)若 m = n - 1,则可从任一度数为1的点搜索即可...
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其他好文 时间:
2015-09-05 20:51:44
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234
题目传送门题意:判断是否为哈密顿图分析:首先一种情况是不合法的:也就是度数为1的点超过2个;合法的有:,那么从度数为1的点开始深搜,如果存在一种走法能够走完n个点那么存在哈密顿路收获:学习资料代码:/************************************************* ...
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其他好文 时间:
2015-09-05 17:37:42
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和HDU 3488一样的,只不过要判断一下是否有解。 1 #include 2 #include 3 #include 4 #include 5 #include 6 using namespace std; 7 8 const int maxn = 1000 + 10;...
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其他好文 时间:
2015-09-05 11:00:00
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208
Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors.OJ’s undirected graph serialization:
Nodes are labeled uniquely.We use # as a separator for each node, an...
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其他好文 时间:
2015-09-03 16:42:54
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105
7.6 Given a two-dimensional graph with points on it, find a line which passes the most number of points.这道题给了我们许多点,让我们求经过最多点的一条直线。给之前那道7.5 A Line Cut ...
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其他好文 时间:
2015-09-03 00:43:18
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215
Rikka with Graph IITime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1051Accepted Submission(s): 266...
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其他好文 时间:
2015-09-02 17:09:48
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161
SPOJ375 Query on a tree 树链剖分no tagsYou are given a tree (an acyclic undirected connected graph) withNnodes, and edges numbered 1, 2, 3...N-1.We will ....
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其他好文 时间:
2015-09-02 00:30:17
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176