
from __future__ import annotations

from dataclasses import dataclass
@dataclass
class 					lowercase__:



	"""simple docstring"""




	a     :float
	a     :TreeNode | None       	=      None
	a     :TreeNode | None       	=      None




def 							a		(				snake_case__:   TreeNode | None   ):


				'''simple docstring'''

				# Validation
				def is_valid_tree(snake_case__:   TreeNode | None   ) -> bool:
								if node is None:
												return True

								if not isinstance(snake_case__		,  snake_case__   ):
												return False

								try:
												float(node.data   )
								except (TypeError, ValueError):
												return False

								return is_valid_tree(node.left   ) and is_valid_tree(node.right   )

				if not is_valid_tree(snake_case__   ):
								raise ValueError(
								    '''Each node should be type of TreeNode and data should be float.'''   )

				def is_binary_search_tree_recursive_check(
				    snake_case__:   TreeNode | None		,  snake_case__:   float		,  snake_case__:   float   ) -> bool:

								if node is None:
												return True

								return (
								    left_bound < node.data < right_bound
								    and is_binary_search_tree_recursive_check(node.left		,  snake_case__		,  node.data   )
								    and is_binary_search_tree_recursive_check(
								        node.right		,  node.data		,  snake_case__   )
								)

				return is_binary_search_tree_recursive_check(snake_case__		,  -float('''inf'''   )		,  float('''inf'''   )   )


if __name__ == "__main__":
						import doctest

						doctest.testmod()






from __future__ import annotations

__a         =   8.988E9  # units = N * m^s * C^-2




def 							a		(				snake_case__:   float		,  snake_case__:   float		,  snake_case__:   float		,  snake_case__:   float   ):


				'''simple docstring'''
				lowercase_	    =   abs(chargea * chargea   )

				if (force, chargea, chargea, distance).count(0   ) != 1:
								raise ValueError('''One and only one argument must be 0'''   )
				if distance < 0:
								raise ValueError('''Distance cannot be negative'''   )
				if force == 0:
								lowercase_	    =   COULOMBS_CONSTANT * charge_product / (distance**2)
								return {"force": force}
				elif chargea == 0:
								lowercase_	    =   abs(snake_case__   ) * (distance**2) / (COULOMBS_CONSTANT * chargea)
								return {"charge1": chargea}
				elif chargea == 0:
								lowercase_	    =   abs(snake_case__   ) * (distance**2) / (COULOMBS_CONSTANT * chargea)
								return {"charge2": chargea}
				elif distance == 0:
								lowercase_	    =   (COULOMBS_CONSTANT * charge_product / abs(snake_case__   )) ** 0.5
								return {"distance": distance}
				raise ValueError('''Exactly one argument must be 0'''   )


if __name__ == "__main__":
						import doctest

						doctest.testmod()




