

"""simple docstring"""




from __future__ import annotations

_lowercase   :	int												=						{
    'A': ['B', 'C', 'E'],
    'B': ['A', 'D', 'E'],
    'C': ['A', 'F', 'G'],
    'D': ['B'],
    'E': ['A', 'B', 'D'],
    'F': ['C'],
    'G': ['C'],
}
class      _UpperCAmelCase   :



	def __init__(  self     :       Dict			,    _lowercase     :       dict[str, list[str]]			,    _lowercase     :       str						):
		__UpperCAmelCase      		= graph
		# mapping node to its parent in resulting breadth first tree
		__UpperCAmelCase      		= {}
		__UpperCAmelCase      		= source_vertex



	def        a  (  self     :       List[Any]						):
		__UpperCAmelCase      		= {self.source_vertex}
		__UpperCAmelCase      		= None
		__UpperCAmelCase      		= [self.source_vertex]  # first in first out queue

		while queue:
			__UpperCAmelCase      		= queue.pop(0						)
			for adjacent_vertex in self.graph[vertex]:
				if adjacent_vertex not in visited:
					visited.add(_lowercase						)
					__UpperCAmelCase      		= vertex
					queue.append(_lowercase						)



	def        a  (  self     :       Optional[Any]			,    _lowercase     :       str						):
		if target_vertex == self.source_vertex:
			return self.source_vertex

		__UpperCAmelCase      		= self.parent.get(_lowercase						)
		if target_vertex_parent is None:
			__UpperCAmelCase      		= (
			    F'''No path from vertex: {self.source_vertex} to vertex: {target_vertex}'''
			)
			raise ValueError(_lowercase						)

		return self.shortest_path(_lowercase						) + F'''->{target_vertex}'''


if __name__ == "__main__":
				_lowercase   :	Tuple												=						Graph(graph, 'G')
				g.breath_first_search()
				print(g.shortest_path('D'))
				print(g.shortest_path('G'))
				print(g.shortest_path('Foo'))





"""simple docstring"""







def       _lowerCamelCase				(							UpperCAmelCase_ :       bytes     )	-> str:






	"""simple docstring"""





	return "".join([hex(UpperCAmelCase_     )[2:].zfill(2     ).upper() for byte in list(UpperCAmelCase_     )]     )

def       _lowerCamelCase				(							UpperCAmelCase_ :       str     )	-> bytes:






	"""simple docstring"""





	if (len(UpperCAmelCase_     ) % 2) != 0:
		raise ValueError(
		    "Base16 encoded data is invalid:\nData does not have an even number of hex digits."     )
	# Check the character set - the standard base16 alphabet
	# is uppercase according to RFC3548 section 6
	if not set(UpperCAmelCase_     ) <= set("0123456789ABCDEF"     ):
		raise ValueError(
		    "Base16 encoded data is invalid:\nData is not uppercase hex or it contains invalid characters."     )
	# For every two hexadecimal digits (= a byte), turn it into an integer.
	# Then, string the result together into bytes, and return it.
	return bytes(int(data[i] + data[i + 1],	16     ) for i in range(0,	len(UpperCAmelCase_     ),	2     )     )


if __name__ == "__main__":
			import doctest

			doctest.testmod()




