

'''simple docstring'''



import copy

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


UpperCAmelCase :       Optional[int]			   =     logging.get_logger(__name__)







class 						lowerCAmelCase__   (      a					):



 """simple docstring"""



 lowerCAmelCase__  					=      "encoder-decoder"
 lowerCAmelCase__  					=      True
 def __init__(		self					:       str					,							**__SCREAMING_SNAKE_CASE					:       Any			)  -> int:


      """simple docstring"""




      super().__init__(**__SCREAMING_SNAKE_CASE			)
      assert (
          "encoder" in kwargs and "decoder" in kwargs
      ), "Config has to be initialized with encoder and decoder config"
      __SCREAMING_SNAKE_CASE     =      kwargs.pop("""encoder"""			)
      __SCREAMING_SNAKE_CASE     =      encoder_config.pop("""model_type"""			)
      __SCREAMING_SNAKE_CASE     =      kwargs.pop("""decoder"""			)
      __SCREAMING_SNAKE_CASE     =      decoder_config.pop("""model_type"""			)

      from ..auto.configuration_auto import AutoConfig

      __SCREAMING_SNAKE_CASE     =      AutoConfig.for_model(__SCREAMING_SNAKE_CASE					,							**__SCREAMING_SNAKE_CASE			)
      __SCREAMING_SNAKE_CASE     =      AutoConfig.for_model(__SCREAMING_SNAKE_CASE					,							**__SCREAMING_SNAKE_CASE			)
      __SCREAMING_SNAKE_CASE     =      True
 @classmethod
 def       UpperCAmelCase__		(		cls					:       str					,							__SCREAMING_SNAKE_CASE					:       PretrainedConfig					,							__SCREAMING_SNAKE_CASE					:       PretrainedConfig					,							**__SCREAMING_SNAKE_CASE					:       str			)  -> PretrainedConfig:


      """simple docstring"""




      logger.info("""Set `config.is_decoder=True` and `config.add_cross_attention=True` for decoder_config"""			)
      __SCREAMING_SNAKE_CASE     =      True
      __SCREAMING_SNAKE_CASE     =      True

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


 def       UpperCAmelCase__		(		self					:       List[str]			)  -> Optional[int]:


      """simple docstring"""




      __SCREAMING_SNAKE_CASE     =      copy.deepcopy(self.__dict__			)
      __SCREAMING_SNAKE_CASE     =      self.encoder.to_dict()
      __SCREAMING_SNAKE_CASE     =      self.decoder.to_dict()
      __SCREAMING_SNAKE_CASE     =      self.__class__.model_type
      return output









'''simple docstring'''



def    a__       (  a__      ,    a__						):




     """simple docstring"""


     _enforce_args(a__      ,    a__						)
     if n == 0:
          return 0
     __SCREAMING_SNAKE_CASE     =      float("""-inf"""						)
     for i in range(1      ,    n + 1						):
          __SCREAMING_SNAKE_CASE     =      max(
              a__      ,    prices[i - 1] + naive_cut_rod_recursive(n - i      ,    a__						)						)

     return max_revue







def    a__       (  a__      ,    a__						):




     """simple docstring"""


     _enforce_args(a__      ,    a__						)
     __SCREAMING_SNAKE_CASE     =      [float("""-inf"""						) for _ in range(n + 1						)]
     return _top_down_cut_rod_recursive(a__      ,    a__      ,    a__						)







def    a__       (  a__      ,    a__      ,    a__						):




     """simple docstring"""


     if max_rev[n] >= 0:
          return max_rev[n]
     elif n == 0:
          return 0
     else:
          __SCREAMING_SNAKE_CASE     =      float("""-inf"""						)
          for i in range(1      ,    n + 1						):
               __SCREAMING_SNAKE_CASE     =      max(
                   a__      ,    prices[i - 1] + _top_down_cut_rod_recursive(n - i      ,    a__      ,    a__						)      ,    )

          __SCREAMING_SNAKE_CASE     =      max_revenue

     return max_rev[n]







def    a__       (  a__      ,    a__						):




     """simple docstring"""


     _enforce_args(a__      ,    a__						)

     # length(max_rev) = n + 1, to accommodate for the revenue obtainable from a rod of
     # length 0.
     __SCREAMING_SNAKE_CASE     =      [float("""-inf"""						) for _ in range(n + 1						)]
     __SCREAMING_SNAKE_CASE     =      0

     for i in range(1      ,    n + 1						):
          __SCREAMING_SNAKE_CASE     =      max_rev[i]
          for j in range(1      ,    i + 1						):
               __SCREAMING_SNAKE_CASE     =      max(a__      ,    prices[j - 1] + max_rev[i - j]						)

          __SCREAMING_SNAKE_CASE     =      max_revenue_i

     return max_rev[n]







def    a__       (  a__      ,    a__						):




     """simple docstring"""


     if n < 0:
          __SCREAMING_SNAKE_CASE     =      F'n must be greater than or equal to 0. Got n = {n}'
          raise ValueError(a__						)

     if n > len(a__						):
          __SCREAMING_SNAKE_CASE     =      (
              """Each integral piece of rod must have a corresponding price. """
              F'Got n = {n} but length of prices = {len(a__						)}'
          )
          raise ValueError(a__						)







def    a__       (  ):




     """simple docstring"""


     __SCREAMING_SNAKE_CASE     =      [6, 10, 12, 15, 20, 23]
     __SCREAMING_SNAKE_CASE     =      len(a__						)

     # the best revenue comes from cutting the rod into 6 pieces, each
     # of length 1 resulting in a revenue of 6 * 6 = 36.
     __SCREAMING_SNAKE_CASE     =      36

     __SCREAMING_SNAKE_CASE     =      top_down_cut_rod(a__      ,    a__						)
     __SCREAMING_SNAKE_CASE     =      bottom_up_cut_rod(a__      ,    a__						)
     __SCREAMING_SNAKE_CASE     =      naive_cut_rod_recursive(a__      ,    a__						)

     assert expected_max_revenue == max_rev_top_down
     assert max_rev_top_down == max_rev_bottom_up
     assert max_rev_bottom_up == max_rev_naive


if __name__ == "__main__":
  main()






