public static void main(String[] args)
	{
		LazyPrimMST mst = new LazyPrimMST(
				new EdgeWeightedGraph(new In(args[0])));

		System.out.println("Minimum spanning tree of " + args[0]);
		for (WeightedEdge e : mst.edges())
			System.out.println(e);
		System.out.println("Weight : " + mst.weight());

	}