def in_graph(self, v):
assert isinstance (v, Vertex)
for pair in self.get_adjacency_list():
vertex = pair [0]
if ((vertex.get_value() == v.get_value()) == True):
return True
return False
def find_pair (self, v):
assert isinstance (v, Vertex)
#1 for looking up pair
#1 for calling get_adjacency_list()
self.__time_op += 2
#1 for storing pair
#1 for storing adjacency_list()
self.__space_op += 2
for pair in self.get_adjacency_list():
#1 for looking up vertex
#1 for looking pair
#1 for looking up 0th index of pair
self.__time_op += 3
#1 for storing vertex
self.__space_op += 1
vertex = pair [0]
#1 for looking up vertex
#1 for calling get_value()
#1 for looking up v
#1 for calling get_value()
#1 for comparing values
#1 for comparing against True
self.__time_op += 6
if ((vertex.get_value() == v.get_value()) == True):
#1 for looking up pair
#1 for returning pair
self.__time_op += 2
return pair
#1 for looking up pair
#1 for calling get_adjacency_list()
self.__time_op += 2
#1 for storing pair
#1 for storing adjacency_list()
self.__space_op += 2
#1 for returning False
self.__time_op += 1
return False
