Kruskal算法，Kruskal算法的时间复杂度为 ，与图中边数有关，而与图中的顶点数无关，因此该算法适合与求边稀疏的网的最小生成树。-Kruskal algorithm, the algorithm Kruskal time complexity of, and chart the edge, with map unrelated to the number of vertices, and the algorithm for edge for the sparse network of m
