weighted_example :: WeightedGraph String String
weighted_example = WeightedGraph (buildGraphFromEdges [("e",("v","u"))]) (M.fromList [("e",2)])
weighted_example :: WeightedGraph String String
weighted_example = WeightedGraph (buildGraphFromEdges [("e",("v","u"))]) (M.fromList [("e",2)])
weighted_example = WeightedGraph (buildGraphFromEdges [("e",("v","u"))]) (M.fromList [("e",2)])