


'''simple docstring'''




from typing import TYPE_CHECKING

from ....utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


UpperCAmelCase_      :		Any          =		{"configuration_mmbt": ["MMBTConfig"]}

try:
 if not is_torch_available():
  raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
 pass
else:
 UpperCAmelCase_      :		Optional[int]          =		["MMBTForClassification", "MMBTModel", "ModalEmbeddings"]


if TYPE_CHECKING:
 from .configuration_mmbt import MMBTConfig

 try:
  if not is_torch_available():
   raise OptionalDependencyNotAvailable()
 except OptionalDependencyNotAvailable:
  pass
 else:
  from .modeling_mmbt import MMBTForClassification, MMBTModel, ModalEmbeddings

else:
 import sys

 UpperCAmelCase_      :		Dict          =		_LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)






'''simple docstring'''




from __future__ import annotations

from collections import namedtuple
from dataclasses import dataclass







@dataclass
class 					a			:
 '''simple docstring'''




 __lowerCAmelCase						: int
 __lowerCAmelCase						: TreeNode | None							  =		None
 __lowerCAmelCase						: TreeNode | None							  =		None





UpperCAmelCase_      :		Dict          =		namedtuple("CoinsDistribResult", "moves excess")


def    UpperCAmelCase_  (       A      ):
   '''simple docstring'''





   if root is None:
      return 0

   # Validation
   def count_nodes(A      ) -> int:
      if node is None:
         return 0

      return count_nodes(node.left      ) + count_nodes(node.right      ) + 1

   def count_coins(A      ) -> int:
      if node is None:
         return 0

      return count_coins(node.left      ) + count_coins(node.right      ) + node.data

   if count_nodes(A      ) != count_coins(A      ):
      raise ValueError('The nodes number should be same as the number of coins'      )

   # Main calculation
   def get_distrib(A      ) -> CoinsDistribResult:

      if node is None:
         return CoinsDistribResult(0		,	1      )

      _a		,						_a					:  Optional[Any]						=  get_distrib(node.left      )
      _a		,						_a					:  Tuple						=  get_distrib(node.right      )

      _a					:  List[str]						=  1 - left_distrib_excess
      _a					:  str						=  1 - right_distrib_excess

      _a					:  Any						=  (
          left_distrib_moves
          + right_distrib_moves
          + abs(A      )
          + abs(A      )
      )
      _a					:  Optional[int]						=  node.data - coins_to_left - coins_to_right

      return CoinsDistribResult(A		,	A      )

   return get_distrib(A      )[0]


if __name__ == "__main__":
 import doctest

 doctest.testmod()


