


from .integrations import (
    is_optuna_available,
    is_ray_available,
    is_sigopt_available,
    is_wandb_available,
    run_hp_search_optuna,
    run_hp_search_ray,
    run_hp_search_sigopt,
    run_hp_search_wandb,
)
from .trainer_utils import (
    HPSearchBackend,
    default_hp_space_optuna,
    default_hp_space_ray,
    default_hp_space_sigopt,
    default_hp_space_wandb,
)
from .utils import logging


lowerCamelCase :    Any						=		logging.get_logger(__name__)





class  _a							:
	_a  :  str
	_a  :  str				   =							None




	@staticmethod
	def 							UpperCAmelCase__( )->	Union[str, Any]:
			raise NotImplementedError




	def 							UpperCAmelCase__( self						:		List[str]		, _SCREAMING_SNAKE_CASE						:		Optional[int]		, _SCREAMING_SNAKE_CASE						:		int		, _SCREAMING_SNAKE_CASE						:		str		, **_SCREAMING_SNAKE_CASE						:		Optional[int]		)->	Optional[Any]:
			raise NotImplementedError




	def 							UpperCAmelCase__( self						:		Optional[Any]		, _SCREAMING_SNAKE_CASE						:		Any		)->	List[str]:
			raise NotImplementedError




	def 							UpperCAmelCase__( self						:		str		)->	Dict:
			if not self.is_available():
					raise RuntimeError(
					    F'You picked the {self.name} backend, but it is not installed. Run {self.pip_install()}.'		)




	@classmethod
	def 							UpperCAmelCase__( cls						:		str		)->	List[str]:
			return F'`pip install {cls.pip_package or cls.name}`'





class  _a							(    _lowercase):
	_a  :  str				   =							'''optuna'''




	@staticmethod
	def 							UpperCAmelCase__( )->	List[Any]:
			return is_optuna_available()




	def 							UpperCAmelCase__( self						:		Tuple		, _SCREAMING_SNAKE_CASE						:		Optional[int]		, _SCREAMING_SNAKE_CASE						:		int		, _SCREAMING_SNAKE_CASE						:		str		, **_SCREAMING_SNAKE_CASE						:		Dict		)->	Optional[Any]:
			return run_hp_search_optuna(_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, **_SCREAMING_SNAKE_CASE		)




	def 							UpperCAmelCase__( self						:		Any		, _SCREAMING_SNAKE_CASE						:		Optional[Any]		)->	Union[str, Any]:
			return default_hp_space_optuna(_SCREAMING_SNAKE_CASE		)





class  _a							(    _lowercase):
	_a  :  Tuple				   =							'''ray'''
	_a  :  Optional[int]				   =							'''\'ray[tune]\''''




	@staticmethod
	def 							UpperCAmelCase__( )->	Union[str, Any]:
			return is_ray_available()




	def 							UpperCAmelCase__( self						:		str		, _SCREAMING_SNAKE_CASE						:		Union[str, Any]		, _SCREAMING_SNAKE_CASE						:		int		, _SCREAMING_SNAKE_CASE						:		str		, **_SCREAMING_SNAKE_CASE						:		Optional[Any]		)->	List[str]:
			return run_hp_search_ray(_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, **_SCREAMING_SNAKE_CASE		)




	def 							UpperCAmelCase__( self						:		str		, _SCREAMING_SNAKE_CASE						:		List[str]		)->	Any:
			return default_hp_space_ray(_SCREAMING_SNAKE_CASE		)





class  _a							(    _lowercase):
	_a  :  str				   =							'''sigopt'''




	@staticmethod
	def 							UpperCAmelCase__( )->	int:
			return is_sigopt_available()




	def 							UpperCAmelCase__( self						:		int		, _SCREAMING_SNAKE_CASE						:		Dict		, _SCREAMING_SNAKE_CASE						:		int		, _SCREAMING_SNAKE_CASE						:		str		, **_SCREAMING_SNAKE_CASE						:		Any		)->	Optional[Any]:
			return run_hp_search_sigopt(_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, **_SCREAMING_SNAKE_CASE		)




	def 							UpperCAmelCase__( self						:		Tuple		, _SCREAMING_SNAKE_CASE						:		Optional[Any]		)->	Optional[int]:
			return default_hp_space_sigopt(_SCREAMING_SNAKE_CASE		)





class  _a							(    _lowercase):
	_a  :  Tuple				   =							'''wandb'''




	@staticmethod
	def 							UpperCAmelCase__( )->	Tuple:
			return is_wandb_available()




	def 							UpperCAmelCase__( self						:		Optional[int]		, _SCREAMING_SNAKE_CASE						:		Optional[int]		, _SCREAMING_SNAKE_CASE						:		int		, _SCREAMING_SNAKE_CASE						:		str		, **_SCREAMING_SNAKE_CASE						:		Union[str, Any]		)->	List[str]:
			return run_hp_search_wandb(_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, **_SCREAMING_SNAKE_CASE		)




	def 							UpperCAmelCase__( self						:		Union[str, Any]		, _SCREAMING_SNAKE_CASE						:		Dict		)->	Tuple:
			return default_hp_space_wandb(_SCREAMING_SNAKE_CASE		)
lowerCamelCase :    str						=		{
    HPSearchBackend(backend.name): backend for backend in [OptunaBackend, RayTuneBackend, SigOptBackend, WandbBackend]
}






def 					lowerCamelCase_   (	):




		"""simple docstring"""






		lowerCAmelCase__       :      Tuple   					= [backend for backend in ALL_HYPERPARAMETER_SEARCH_BACKENDS.values() if backend.is_available()]
		if len(_a	) > 0:
				lowerCAmelCase__       :      Optional[int]   					= available_backends[0].name
				if len(_a	) > 1:
						logger.info(
						    f'{len(_a	)} hyperparameter search backends available. Using {name} as the default.'	)
				return name
		raise RuntimeError(
		    '''No hyperparameter search backend available.\n'''
		    + '''\n'''.join(
		        f' - To install {backend.name} run {backend.pip_install()}'
		        for backend in ALL_HYPERPARAMETER_SEARCH_BACKENDS.values()	)	)








import math





class  _a							:




	def __init__( self						:		List[Any]		, _SCREAMING_SNAKE_CASE						:		Any=0		)->	Optional[Any]:  # a graph with Node 0,1,...,N-1
			lowerCAmelCase__       :      Optional[int]   					= n
			lowerCAmelCase__       :      List[Any]   					= [
			    [math.inf for j in range(0		, _SCREAMING_SNAKE_CASE		)] for i in range(0		, _SCREAMING_SNAKE_CASE		)
			]  # adjacency matrix for weight
			lowerCAmelCase__       :      str   					= [
			    [math.inf for j in range(0		, _SCREAMING_SNAKE_CASE		)] for i in range(0		, _SCREAMING_SNAKE_CASE		)
			]  # dp[i][j] stores minimum distance from i to j




	def 							UpperCAmelCase__( self						:		Optional[Any]		, _SCREAMING_SNAKE_CASE						:		Optional[int]		, _SCREAMING_SNAKE_CASE						:		List[str]		, _SCREAMING_SNAKE_CASE						:		str		)->	List[str]:
			lowerCAmelCase__       :      Optional[int]   					= w




	def 							UpperCAmelCase__( self						:		List[Any]		)->	Optional[int]:
			for k in range(0		, self.n		):
					for i in range(0		, self.n		):
							for j in range(0		, self.n		):
									lowerCAmelCase__       :      Dict   					= min(self.dp[i][j]		, self.dp[i][k] + self.dp[k][j]		)




	def 							UpperCAmelCase__( self						:		str		, _SCREAMING_SNAKE_CASE						:		Any		, _SCREAMING_SNAKE_CASE						:		str		)->	str:
			return self.dp[u][v]


if __name__ == "__main__":
		lowerCamelCase						=		Graph(5)
		graph.add_edge(0, 2, 9)
		graph.add_edge(0, 4, 10)
		graph.add_edge(1, 3, 5)
		graph.add_edge(2, 3, 7)
		graph.add_edge(3, 0, 10)
		graph.add_edge(3, 1, 2)
		graph.add_edge(3, 2, 1)
		graph.add_edge(3, 4, 6)
		graph.add_edge(4, 1, 3)
		graph.add_edge(4, 2, 4)
		graph.add_edge(4, 3, 9)
		graph.floyd_warshall()
		graph.show_min(1, 4)
		graph.show_min(0, 3)




