
def  a_	( __lowercase     :			list ,      __lowercase     :			list ,      __lowercase     :			list ,      __lowercase     :			int ,      __lowercase     :			int				)				->						None:
			if target == 0:
						answer.append(path.copy()				)
			else:
						for index in range(__lowercase ,      len(__lowercase				)				):
									if target >= candidates[index]:
												path.append(candidates[index]				)
												backtrack(__lowercase ,      __lowercase ,      __lowercase ,      target - candidates[index] ,      __lowercase				)
												path.pop(len(__lowercase				) - 1				)






def  a_	( __lowercase     :			list ,      __lowercase     :			int				)				->						list:
			_snake_case						=    []  # type: list[int]
			_snake_case						=    []  # type: list[int]
			backtrack(__lowercase ,      __lowercase ,      __lowercase ,      __lowercase ,      0				)
			return answer






def  a_	( )				->						None:
			print(combination_sum([-8, 2.3, 0] ,      1				)				)


if __name__ == "__main__":
			import doctest

			doctest.testmod()
			main()


from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_sentencepiece_available, is_tokenizers_available


_lowerCamelCase :       Optional[int]     					=    {}

try:
			if not is_sentencepiece_available():
						raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
			pass
else:
			_lowerCamelCase :       List[str]     					=    ['''MBart50Tokenizer''']

try:
			if not is_tokenizers_available():
						raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
			pass
else:
			_lowerCamelCase :       Optional[int]     					=    ['''MBart50TokenizerFast''']


if TYPE_CHECKING:
			try:
						if not is_sentencepiece_available():
									raise OptionalDependencyNotAvailable()
			except OptionalDependencyNotAvailable:
						pass
			else:
						from .tokenization_mbartaa import MBartaaTokenizer

			try:
						if not is_tokenizers_available():
									raise OptionalDependencyNotAvailable()
			except OptionalDependencyNotAvailable:
						pass
			else:
						from .tokenization_mbartaa_fast import MBartaaTokenizerFast

else:
			import sys

			_lowerCamelCase :       int     					=    _LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)