public static void Main(string[] args)
{
Graph graph = new Graph(4);
graph.AddNodePath(0, 0, 0);
graph.AddNodePath(0, 1, 20);
graph.AddNodePath(0, 2, 80);
graph.AddNodePath(1, 2, 10);
graph.AddNodePath(2, 3, 20);
Console.WriteLine(graph.ShortestPath(1));
Console.WriteLine(graph.ShortestPath(2));
Console.WriteLine(graph.ShortestPath(3));
}
