def __init__(self, root=0):
DirectedGraph.__init__(self)
self.graph = defaultdict(dict)
self.root = root
def clearGraph(self):
DirectedGraph.__init__(self)
def __init__(self):
DirectedGraph.__init__(self)
self.V = 0
def __init__(self, vertices): DirectedGraph.__init__(self) self.graph = defaultdict(dict) self.V = vertices