package graphTheory.graph;

/**
 * A directed graph is a graph containing only arcs, but not edges
 * 
 * @author Watel Dimitri
 *
 */
public class DirectedGraph extends Graph {

	public Arc addUndirectedEdge(Integer input, Integer output) {
		return null;
	}

	public Arc addUndirectedEdge(Integer input, Integer output, int cost) {
		return null;
	}

}
