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-- 作者:Ivanlam -- 发布时间:4/10/2008 5:19:00 PM -- 一道ACM题 the number of nodes the description of each node in the following format node_identifier:(number_of_roads) node_identifier1 node_identifier2 ... node_identifier or node_identifier:(0) The node identifiers are integer numbers between 0 and n-1, for n nodes (0 < n <= 1500). Every edge appears only once in the input data. For example for the tree:
the solution is one soldier ( at the node 1). The output should be printed on the standard output. For each given input data set, print one integer number in a single line that gives the result (the minimum number of soldiers). An example is given in the following table: 4 1
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