Description: minimum spanning tree problem to the n-city building communications networks needed to put up only n-1 lines can be. How the lowest economic cost of building the communications network, the network is a minimum spanning tree problem. (1) using Kelushikaer network algorithm for the minimum spanning tree. (2) to achieve 6.5 textbook definition of the abstract tree types MFSet. Spanning Tree Construction said this process of connectivity components. (3) the form of text output spanning trees and the edge of their weights.
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