
def        UpperCamelCase    (							lowerCAmelCase__		):
					'''simple docstring'''

					if isinstance(snake_case__ ,			snake_case__		):
										raise TypeError('''\'float\' object cannot be interpreted as an integer'''		)
					if isinstance(snake_case__ ,			snake_case__		):
										raise TypeError('''\'str\' object cannot be interpreted as an integer'''		)

					if num == 0:
										return "0b0"

					lowercase							=						False

					if num < 0:
										lowercase							=						True
										lowercase							=						-num

					lowercase							=						[]
					while num > 0:
										binary.insert(0 ,			num % 2		)
										num >>= 1

					if negative:
										return "-0b" + "".join(str(snake_case__		) for e in binary		)

					return "0b" + "".join(str(snake_case__		) for e in binary		)


if __name__ == "__main__":
							import doctest

							doctest.testmod()





from __future__ import annotations

_SCREAMING_SNAKE_CASE										=						{
    'A': ['B', 'C', 'E'],
    'B': ['A', 'D', 'E'],
    'C': ['A', 'F', 'G'],
    'D': ['B'],
    'E': ['A', 'B', 'D'],
    'F': ['C'],
    'G': ['C'],
}



class 				a							:







 """simple docstring"""






 def __init__(					self		,				lowerCAmelCase_		,				lowerCAmelCase_							)  ->					None:
        _A        =  graph
        # mapping node to its parent in resulting breadth first tree
        _A        =  {}
        _A        =  source_vertex



 def      UpperCAmelCase							(					self							)  ->					None:
        _A        =  {self.source_vertex}
        _A        =  None
        _A        =  [self.source_vertex]  # first in first out queue

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



 def      UpperCAmelCase							(					self		,				lowerCAmelCase_							)  ->					str:
        if target_vertex == self.source_vertex:
               return self.source_vertex

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

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


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




