
from __future__ import annotations
class  lowercase__:



	"""simple docstring"""




	def __init__(       self  :			str       ,							SCREAMING_SNAKE_CASE_  :			int       )       ->     None:
					lowercase_       =					data
					lowercase_       =					None
					lowercase_       =					None




def 				a						(							snake_case__:					Node | None					):  # In Order traversal of the tree


				'''simple docstring'''
				if tree:
								display(tree.left					)
								print(tree.data					)
								display(tree.right					)




def 				a						(							snake_case__:					Node | None					):


				'''simple docstring'''
				return 1 + max(depth_of_tree(tree.left					)						,   depth_of_tree(tree.right					)					) if tree else 0




def 				a						(							snake_case__:					Node					):


				'''simple docstring'''
				if not tree:
								return True
				if tree.left and tree.right:
								return is_full_binary_tree(tree.left					) and is_full_binary_tree(tree.right					)
				else:
								return not tree.left and not tree.right




def 				a						(							):  # Main function for testing.


				'''simple docstring'''
				lowercase_       =					Node(1					)
				lowercase_       =					Node(2					)
				lowercase_       =					Node(3					)
				lowercase_       =					Node(4					)
				lowercase_       =					Node(5					)
				lowercase_       =					Node(6					)
				lowercase_       =					Node(7					)
				lowercase_       =					Node(8					)
				lowercase_       =					Node(9					)

				print(is_full_binary_tree(snake_case__					)					)
				print(depth_of_tree(snake_case__					)					)
				print('''Tree is: '''					)
				display(snake_case__					)


if __name__ == "__main__":
						main()






def 				a						(							snake_case__:					list						,   snake_case__:					list						,   snake_case__:					int						,   snake_case__:					int						,   snake_case__:					int					):


				'''simple docstring'''
				if index == number_of_items:
								return 0
				lowercase_       =					0
				lowercase_       =					0
				lowercase_       =					knapsack(snake_case__						,   snake_case__						,   snake_case__						,   snake_case__						,   index + 1					)
				if weights[index] <= max_weight:
								lowercase_       =					values[index] + knapsack(
								    snake_case__						,   snake_case__						,   snake_case__						,   max_weight - weights[index]						,   index + 1					)
				return max(snake_case__						,   snake_case__					)


if __name__ == "__main__":
						import doctest

						doctest.testmod()




