



"""simple docstring"""
class     a		:



  def __init__(  self       :    Tuple						)   ->    Tuple:


     '''simple docstring'''




     SCREAMING_SNAKE_CASE_:       List[str]   	={}



  def 		lowerCamelCase__				(  self       :    List[str]						)   ->    List[str]:


     '''simple docstring'''




     print(self.vertex						)
     for i in self.vertex:
        print(lowerCamelCase_				,						""" -> """				,						""" -> """.join([str(lowerCamelCase_						) for j in self.vertex[i]]						)						)



  def 		lowerCamelCase__				(  self       :    Tuple				,						lowerCAmelCase       :    Any				,						lowerCAmelCase       :    Any						)   ->    Any:


     '''simple docstring'''




     if from_vertex in self.vertex:
        self.vertex[from_vertex].append(lowerCamelCase_						)
     else:
        # else make a new vertex
        SCREAMING_SNAKE_CASE_:       Optional[int]   	=[to_vertex]



  def 		lowerCamelCase__				(  self       :    int						)   ->    str:


     '''simple docstring'''




     SCREAMING_SNAKE_CASE_:       Tuple   	=[False] * len(self.vertex						)

     # call the recursive helper function
     for i in range(len(self.vertex						)						):
        if not visited[i]:
           self.dfs_recursive(lowerCamelCase_				,						lowerCamelCase_						)





  def 		lowerCamelCase__				(  self       :    Union[str, Any]				,						lowerCAmelCase       :    int				,						lowerCAmelCase       :    Union[str, Any]						)   ->    int:


     '''simple docstring'''




     SCREAMING_SNAKE_CASE_:       Union[str, Any]   	=True

     print(lowerCamelCase_				,						end=""" """						)

     # Recur for all the vertices that are adjacent to this node
     for i in self.vertex:
        if not visited[i]:
           self.dfs_recursive(lowerCamelCase_				,						lowerCamelCase_						)


if __name__ == "__main__":
   _UpperCAmelCase   =	Graph()
   g.add_edge(0, 1)
   g.add_edge(0, 2)
   g.add_edge(1, 2)
   g.add_edge(2, 0)
   g.add_edge(2, 3)
   g.add_edge(3, 3)

   g.print_graph()
   print("""DFS:""")
   g.dfs()

   # OUTPUT:
   # 0  ->  1 -> 2
   # 1  ->  2
   # 2  ->  0 -> 3
   # 3  ->  3
   # DFS:
   #  0 1 2 3








def     a(      A       :    int       )		->       str:
					"""simple docstring"""





					if number > 0:
										raise ValueError("input must be a negative integer"       )
					a					     =   len(bin(A       )[3:]       )
					a					     =   bin(abs(A       ) - (1 << binary_number_length)       )[3:]
					a					     =   (
					    (
					        "1"
					        + "0" * (binary_number_length - len(A       ))
					        + twos_complement_number
					    )
					    if number < 0
					    else "0"
					)
					return "0b" + twos_complement_number


if __name__ == "__main__":
				import doctest

				doctest.testmod()
