


'''simple docstring'''



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


__A		=logging.get_logger(__name__)


class 						_snake_case   :
					lowerCAmelCase :str
					lowerCAmelCase :str						=   None




					@staticmethod
					def 			snake_case__  ( ):
								raise NotImplementedError




					def 			snake_case__  ( self							,							_lowerCamelCase							,							_lowerCamelCase							,							_lowerCamelCase							,							**_lowerCamelCase):
								raise NotImplementedError




					def 			snake_case__  ( self							,							_lowerCamelCase):
								raise NotImplementedError




					def 			snake_case__  ( self):
								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 			snake_case__  ( cls):
								return f'''`pip install {cls.pip_package or cls.name}`'''


class 						_snake_case   (       A__		):
					lowerCAmelCase :List[Any]						=   "optuna"




					@staticmethod
					def 			snake_case__  ( ):
								return is_optuna_available()




					def 			snake_case__  ( self							,							_lowerCamelCase							,							_lowerCamelCase							,							_lowerCamelCase							,							**_lowerCamelCase):
								return run_hp_search_optuna(__A							,							__A							,							__A							,							**__A)




					def 			snake_case__  ( self							,							_lowerCamelCase):
								return default_hp_space_optuna(__A)


class 						_snake_case   (       A__		):
					lowerCAmelCase :Optional[int]						=   "ray"
					lowerCAmelCase :Any						=   "'ray[tune]'"




					@staticmethod
					def 			snake_case__  ( ):
								return is_ray_available()




					def 			snake_case__  ( self							,							_lowerCamelCase							,							_lowerCamelCase							,							_lowerCamelCase							,							**_lowerCamelCase):
								return run_hp_search_ray(__A							,							__A							,							__A							,							**__A)




					def 			snake_case__  ( self							,							_lowerCamelCase):
								return default_hp_space_ray(__A)


class 						_snake_case   (       A__		):
					lowerCAmelCase :List[str]						=   "sigopt"




					@staticmethod
					def 			snake_case__  ( ):
								return is_sigopt_available()




					def 			snake_case__  ( self							,							_lowerCamelCase							,							_lowerCamelCase							,							_lowerCamelCase							,							**_lowerCamelCase):
								return run_hp_search_sigopt(__A							,							__A							,							__A							,							**__A)




					def 			snake_case__  ( self							,							_lowerCamelCase):
								return default_hp_space_sigopt(__A)


class 						_snake_case   (       A__		):
					lowerCAmelCase :Optional[Any]						=   "wandb"




					@staticmethod
					def 			snake_case__  ( ):
								return is_wandb_available()




					def 			snake_case__  ( self							,							_lowerCamelCase							,							_lowerCamelCase							,							_lowerCamelCase							,							**_lowerCamelCase):
								return run_hp_search_wandb(__A							,							__A							,							__A							,							**__A)




					def 			snake_case__  ( self							,							_lowerCamelCase):
								return default_hp_space_wandb(__A)

__A		={
    HPSearchBackend(backend.name): backend for backend in [OptunaBackend, RayTuneBackend, SigOptBackend, WandbBackend]
}







def       _UpperCamelCase (						):
			UpperCAmelCase__					:   Union[str, Any]       				=       [backend for backend in ALL_HYPERPARAMETER_SEARCH_BACKENDS.values() if backend.is_available()]
			if len(lowercase__   ) > 0:
						UpperCAmelCase__					:   Any       				=       available_backends[0].name
						if len(lowercase__   ) > 1:
									logger.info(
									    f'''{len(lowercase__   )} 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()   )   )








'''simple docstring'''



def       _UpperCamelCase (						UpperCamelCase__   ):
			UpperCAmelCase__					:   List[str]       				=       len(UpperCamelCase__   )
			UpperCAmelCase__					:   List[Any]       				=       sum(UpperCamelCase__   )

			UpperCAmelCase__					:   List[str]       				=       [[False for x in range(s + 1   )] for y in range(n + 1   )]

			for i in range(1	, n + 1   ):
						UpperCAmelCase__					:   int       				=       True

			for i in range(1	, s + 1   ):
						UpperCAmelCase__					:   Dict       				=       False

			for i in range(1	, n + 1   ):
						for j in range(1	, s + 1   ):
									UpperCAmelCase__					:   int       				=       dp[i][j - 1]

									if arr[i - 1] <= j:
												UpperCAmelCase__					:   str       				=       dp[i][j] or dp[i - 1][j - arr[i - 1]]

			for j in range(int(s / 2   )	, -1	, -1   ):
						if dp[n][j] is True:
									UpperCAmelCase__					:   int       				=       s - 2 * j
									break

			return diff