private static void findnextvertextotraverse() {
		// TODO Auto-generated method stub
		score = 100000000;
		vertextotransverse =0;
		int tailvertex = 1;
		for(int j = 0;j<explored.size();j++){
			tailvertex = explored.get(j);
			findminimumgreedyscorefortailvertex(tailvertex);
			
			
		}
	}