


import copy

from ...configuration_utils import PretrainedConfig
from ...utils import logging


snake_case__			 =						logging.get_logger(__name__)


class 					lowerCAmelCase_ (       SCREAMING_SNAKE_CASE__):
						lowerCamelCase_         =     'encoder-decoder'
						lowerCamelCase_         =     True




						def __init__(	self						:   Optional[Any]   ,     **__A						:   int						)      ->Any:






									"""simple docstring"""






									super().__init__(**_lowercase						)
									assert (
									    "encoder" in kwargs and "decoder" in kwargs
									), "Config has to be initialized with encoder and decoder config"
									a__ :int						  =    kwargs.pop("encoder"						)
									a__ :List[str]						  =    encoder_config.pop("model_type"						)
									a__ :Optional[int]						  =    kwargs.pop("decoder"						)
									a__ :Tuple						  =    decoder_config.pop("model_type"						)

									from ..auto.configuration_auto import AutoConfig

									a__ :Tuple						  =    AutoConfig.for_model(_lowercase   ,     **_lowercase						)
									a__ :str						  =    AutoConfig.for_model(_lowercase   ,     **_lowercase						)
									a__ :Optional[Any]						  =    True




						@classmethod
						def  _snake_case					(	cls						:   Optional[Any]   ,     __A						:   Tuple   ,     __A						:   List[Any]   ,     **__A						:   Optional[Any]						)      ->PretrainedConfig:






									"""simple docstring"""






									logger.info("Set `config.is_decoder=True` and `config.add_cross_attention=True` for decoder_config"						)
									a__ :Union[str, Any]						  =    True
									a__ :Tuple						  =    True

									return cls(encoder=encoder_config.to_dict()   ,     decoder=decoder_config.to_dict()   ,     **_lowercase						)






						def  _snake_case					(	self						:   Any						)      ->int:






									"""simple docstring"""






									a__ :Union[str, Any]						  =    copy.deepcopy(self.__dict__						)
									a__ :Dict						  =    self.encoder.to_dict()
									a__ :Any						  =    self.decoder.to_dict()
									a__ :Optional[Any]						  =    self.__class__.model_type
									return output






class 					lowerCAmelCase_ :




						def __init__(	self						:   Optional[int]						)      ->Optional[Any]:






									"""simple docstring"""






									a__ :Tuple						  =    {}




						def  _snake_case					(	self						:   Tuple						)      ->None:






									"""simple docstring"""






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




						def  _snake_case					(	self						:   Optional[int]   ,     __A						:   int   ,     __A						:   int						)      ->None:






									"""simple docstring"""






									if from_vertex in self.vertex:
												self.vertex[from_vertex].append(__A						)
									else:
												# else make a new vertex
												a__ :Any						  =    [to_vertex]




						def  _snake_case					(	self						:   Optional[int]						)      ->None:






									"""simple docstring"""






									a__ :List[Any]						  =    [False] * len(self.vertex						)

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






						def  _snake_case					(	self						:   Union[str, Any]   ,     __A						:   int   ,     __A						:   list						)      ->None:






									"""simple docstring"""






									a__ :Dict						  =    True

									print(__A   ,     end=" "						)

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


if __name__ == "__main__":
		snake_case__			 =						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


