





def lowerCAmelCase__(__snake_case       ,__snake_case							)				->      Optional[int]:







	'''simple docstring'''







	assert x is not None
	assert y is not None

	lowerCamelCase__								=		len(_UpperCAmelCase							)
	lowerCamelCase__								=		len(_UpperCAmelCase							)

	# declaring the array for storing the dp values
	lowerCamelCase__								=		[[0] * (n + 1) for _ in range(m + 1							)]  # noqa: E741

	for i in range(1       ,m + 1							):
		for j in range(1       ,n + 1							):
			lowerCamelCase__								=		1 if x[i - 1] == y[j - 1] else 0

			lowerCamelCase__								=		max(l[i - 1][j]       ,l[i][j - 1]       ,l[i - 1][j - 1] + match							)

	lowerCamelCase__								=		''
	lowerCamelCase__								=		m, n
	while i > 0 and j > 0:
		lowerCamelCase__								=		1 if x[i - 1] == y[j - 1] else 0

		if l[i][j] == l[i - 1][j - 1] + match:
			if match == 1:
				lowerCamelCase__								=		x[i - 1] + seq
			i -= 1
			j -= 1
		elif l[i][j] == l[i - 1][j]:
			i -= 1
		else:
			j -= 1

	return l[m][n], seq


if __name__ == "__main__":
			_a 						=      'AGGTAB'
			_a 						=      'GXTXAYB'
			_a 						=      4
			_a 						=      'GTAB'

			_a 						=      longest_common_subsequence(a, b)
			print("len =", ln, ", sub-sequence =", subseq)
			import doctest

			doctest.testmod()










"""simple docstring"""




from typing import Optional, Union

import torch
from torch import nn

from ...configuration_utils import ConfigMixin, register_to_config
from ...models.modeling_utils import ModelMixin

class  _UpperCAmelCase  (   UpperCAmelCase__			,   UpperCAmelCase__		):



      '''simple docstring'''

      @register_to_config
      def __init__(     self					,      snake_case_ = 7_6_8					,      ):

        """simple docstring"""

        super().__init__()

        A_  :       Optional[int]										=  nn.Parameter(torch.zeros(1					,      snake_case_  )  )
        A_  :       Optional[int]										=  nn.Parameter(torch.ones(1					,      snake_case_  )  )

      def 					lowerCamelCase_			(     self					,      snake_case_ = None					,      snake_case_ = None					,      ):

        """simple docstring"""

        A_  :       str										=  nn.Parameter(self.mean.to(snake_case_  ).to(snake_case_  )  )
        A_  :       Optional[int]										=  nn.Parameter(self.std.to(snake_case_  ).to(snake_case_  )  )
        return self

      def 					lowerCamelCase_			(     self					,      snake_case_  ):

        """simple docstring"""

        A_  :       Tuple										=  (embeds - self.mean) * 1.0 / self.std
        return embeds

      def 					lowerCamelCase_			(     self					,      snake_case_  ):

        """simple docstring"""

        A_  :       List[str]										=  (embeds * self.std) + self.mean
        return embeds