





'''simple docstring'''




from queue import Queue





def   a_							(   __snake_case							:    List[str]     )							->		str:



       """simple docstring"""
       lowerCamelCase_							=Queue()
       lowerCamelCase_							=[False] * len(__snake_case     )
       lowerCamelCase_							=[-1] * len(__snake_case     )

       def bfs():
              while not queue.empty():
                     lowerCamelCase_							=queue.get()
                     lowerCamelCase_							=True

                     for neighbour in graph[u]:
                            if neighbour == u:
                                   return False

                            if color[neighbour] == -1:
                                   lowerCamelCase_							=1 - color[u]
                                   queue.put(__snake_case     )

                            elif color[neighbour] == color[u]:
                                   return False

              return True

       for i in range(len(__snake_case     )     ):
              if not visited[i]:
                     queue.put(__snake_case     )
                     lowerCamelCase_							=0
                     if bfs() is False:
                            return False

       return True


if __name__ == "__main__":
     # Adjacency List of graph
     print(check_bipartite({0: [1, 3], 1: [0, 2], 2: [1, 3], 3: [0, 2]}))










'''simple docstring'''




from typing import TYPE_CHECKING

from ...utils import (
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_tf_available,
    is_tokenizers_available,
    is_torch_available,
)


a_   :	Union[str, Any]							   = {
    """configuration_openai""": ["""OPENAI_GPT_PRETRAINED_CONFIG_ARCHIVE_MAP""", """OpenAIGPTConfig"""],
    """tokenization_openai""": ["""OpenAIGPTTokenizer"""],
}

try:
     if not is_tokenizers_available():
          raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
     pass
else:
     a_   :	Optional[int]							   = ["""OpenAIGPTTokenizerFast"""]

try:
     if not is_torch_available():
          raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
     pass
else:
     a_   :	int							   = [
         """OPENAI_GPT_PRETRAINED_MODEL_ARCHIVE_LIST""",
         """OpenAIGPTDoubleHeadsModel""",
         """OpenAIGPTForSequenceClassification""",
         """OpenAIGPTLMHeadModel""",
         """OpenAIGPTModel""",
         """OpenAIGPTPreTrainedModel""",
         """load_tf_weights_in_openai_gpt""",
     ]

try:
     if not is_tf_available():
          raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
     pass
else:
     a_   :	Dict							   = [
         """TF_OPENAI_GPT_PRETRAINED_MODEL_ARCHIVE_LIST""",
         """TFOpenAIGPTDoubleHeadsModel""",
         """TFOpenAIGPTForSequenceClassification""",
         """TFOpenAIGPTLMHeadModel""",
         """TFOpenAIGPTMainLayer""",
         """TFOpenAIGPTModel""",
         """TFOpenAIGPTPreTrainedModel""",
     ]


if TYPE_CHECKING:
     from .configuration_openai import OPENAI_GPT_PRETRAINED_CONFIG_ARCHIVE_MAP, OpenAIGPTConfig
     from .tokenization_openai import OpenAIGPTTokenizer

     try:
          if not is_tokenizers_available():
               raise OptionalDependencyNotAvailable()
     except OptionalDependencyNotAvailable:
          pass
     else:
          from .tokenization_openai_fast import OpenAIGPTTokenizerFast

     try:
          if not is_torch_available():
               raise OptionalDependencyNotAvailable()
     except OptionalDependencyNotAvailable:
          pass
     else:
          from .modeling_openai import (
              OPENAI_GPT_PRETRAINED_MODEL_ARCHIVE_LIST,
              OpenAIGPTDoubleHeadsModel,
              OpenAIGPTForSequenceClassification,
              OpenAIGPTLMHeadModel,
              OpenAIGPTModel,
              OpenAIGPTPreTrainedModel,
              load_tf_weights_in_openai_gpt,
          )

     try:
          if not is_tf_available():
               raise OptionalDependencyNotAvailable()
     except OptionalDependencyNotAvailable:
          pass
     else:
          from .modeling_tf_openai import (
              TF_OPENAI_GPT_PRETRAINED_MODEL_ARCHIVE_LIST,
              TFOpenAIGPTDoubleHeadsModel,
              TFOpenAIGPTForSequenceClassification,
              TFOpenAIGPTLMHeadModel,
              TFOpenAIGPTMainLayer,
              TFOpenAIGPTModel,
              TFOpenAIGPTPreTrainedModel,
          )

else:
     import sys

     a_   :	List[Any]							   = _LazyModule(__name__, globals()["""__file__"""], _import_structure, module_spec=__spec__)




