





from __future__ import annotations

from collections.abc import MutableSequence





class      lowercase__    :







  def __init__(	self    ,						_lowercase    ,						_lowercase						):
       if len(_lowercase						) != degree + 1:
            raise ValueError(
                """The number of coefficients should be equal to the degree + 1."""						)

       lowerCAmelCase_					:       list[float]    =		list(_lowercase						)
       lowerCAmelCase_					:       Tuple    =		degree







  def __add__(	self    ,						_lowercase						):

       if self.degree > polynomial_a.degree:
            lowerCAmelCase_					:       Optional[int]    =		self.coefficients[:]
            for i in range(polynomial_a.degree + 1						):
                 coefficients[i] += polynomial_a.coefficients[i]
            return Polynomial(self.degree    ,						_lowercase						)
       else:
            lowerCAmelCase_					:       List[str]    =		polynomial_a.coefficients[:]
            for i in range(self.degree + 1						):
                 coefficients[i] += self.coefficients[i]
            return Polynomial(polynomial_a.degree    ,						_lowercase						)







  def __sub__(	self    ,						_lowercase						):
       return self + polynomial_a * Polynomial(0    ,						[-1]						)







  def __neg__(	self						):
       return Polynomial(self.degree    ,						[-c for c in self.coefficients]						)







  def __mul__(	self    ,						_lowercase						):
       lowerCAmelCase_					:       list[float]    =		[0] * (self.degree + polynomial_a.degree + 1)
       for i in range(self.degree + 1						):
            for j in range(polynomial_a.degree + 1						):
                 coefficients[i + j] += (
                     self.coefficients[i] * polynomial_a.coefficients[j]
                 )

       return Polynomial(self.degree + polynomial_a.degree    ,						_lowercase						)







  def 	UpperCAmelCase__		(	self    ,						_lowercase						):
       lowerCAmelCase_					:       int | float    =		0
       for i in range(self.degree + 1						):
            result += self.coefficients[i] * (substitution**i)
       return result







  def __str__(	self						):
       lowerCAmelCase_					:       Tuple    =		""""""
       for i in range(self.degree    ,						-1    ,						-1						):
            if self.coefficients[i] == 0:
                 continue
            elif self.coefficients[i] > 0:
                 if polynomial:
                      polynomial += " + "
            else:
                 polynomial += " - "

            if i == 0:
                 polynomial += str(abs(self.coefficients[i]						)						)
            elif i == 1:
                 polynomial += str(abs(self.coefficients[i]						)						) + "x"
            else:
                 polynomial += str(abs(self.coefficients[i]						)						) + "x^" + str(_lowercase						)

       return polynomial







  def __repr__(	self						):
       return self.__str__()







  def 	UpperCAmelCase__		(	self						):
       lowerCAmelCase_					:       list[float]    =		[0] * self.degree
       for i in range(self.degree						):
            lowerCAmelCase_					:       Optional[int]    =		self.coefficients[i + 1] * (i + 1)
       return Polynomial(self.degree - 1    ,						_lowercase						)







  def 	UpperCAmelCase__		(	self    ,						_lowercase = 0						):
       lowerCAmelCase_					:       list[float]    =		[0] * (self.degree + 2)
       lowerCAmelCase_					:       List[Any]    =		constant
       for i in range(self.degree + 1						):
            lowerCAmelCase_					:       str    =		self.coefficients[i] / (i + 1)
       return Polynomial(self.degree + 1    ,						_lowercase						)







  def __eq__(	self    ,						_lowercase						):
       if not isinstance(_lowercase    ,						_lowercase						):
            return False

       if self.degree != polynomial_a.degree:
            return False

       for i in range(self.degree + 1						):
            if self.coefficients[i] != polynomial_a.coefficients[i]:
                 return False

       return True







  def __ne__(	self    ,						_lowercase						):
       return not self.__eq__(_lowercase						)







from typing import TYPE_CHECKING

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


UpperCAmelCase_					:   int 							=						{"""configuration_plbart""": ["""PLBART_PRETRAINED_CONFIG_ARCHIVE_MAP""", """PLBartConfig"""]}

try:
      if not is_sentencepiece_available():
            raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
      pass
else:
      UpperCAmelCase_					:   Optional[int] 							=						["""PLBartTokenizer"""]

try:
      if not is_torch_available():
            raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
      pass
else:
      UpperCAmelCase_					:   Union[str, Any] 							=						[
          """PLBART_PRETRAINED_MODEL_ARCHIVE_LIST""",
          """PLBartForCausalLM""",
          """PLBartForConditionalGeneration""",
          """PLBartForSequenceClassification""",
          """PLBartModel""",
          """PLBartPreTrainedModel""",
      ]


if TYPE_CHECKING:
      from .configuration_plbart import PLBART_PRETRAINED_CONFIG_ARCHIVE_MAP, PLBartConfig

      try:
            if not is_sentencepiece_available():
                  raise OptionalDependencyNotAvailable()
      except OptionalDependencyNotAvailable:
            pass
      else:
            from .tokenization_plbart import PLBartTokenizer

      try:
            if not is_torch_available():
                  raise OptionalDependencyNotAvailable()
      except OptionalDependencyNotAvailable:
            pass
      else:
            from .modeling_plbart import (
                PLBART_PRETRAINED_MODEL_ARCHIVE_LIST,
                PLBartForCausalLM,
                PLBartForConditionalGeneration,
                PLBartForSequenceClassification,
                PLBartModel,
                PLBartPreTrainedModel,
            )


else:
      import sys

      UpperCAmelCase_					:   List[str] 							=						_LazyModule(__name__, globals()["""__file__"""], _import_structure)
