
class 							UpperCAmelCase      :




	'''simple docstring'''





	def __init__(       self					: Any ):
					__A   			= {}  # Mapping from char to TrieNode
					__A   			= False






	def 				UpperCamelCase_  (       self					: List[str]							,A					: list[str] ):
					for word in words:
									self.insert(A )






	def 				UpperCamelCase_  (       self					: Optional[int]							,A					: str ):
					__A   			= self
					for char in word:
									if char not in curr.nodes:
													__A   			= TrieNode()
									__A   			= curr.nodes[char]
					__A   			= True






	def 				UpperCamelCase_  (       self					: int							,A					: str ):
					__A   			= self
					for char in word:
									if char not in curr.nodes:
													return False
									__A   			= curr.nodes[char]
					return curr.is_leaf







	def 				UpperCamelCase_  (       self					: Dict							,A					: str ):

					def _delete(A					: TrieNode							,A					: str							,A					: int ) -> bool:
									if index == len(A ):
													# If word does not exist
													if not curr.is_leaf:
																	return False
													__A   			= False
													return len(curr.nodes ) == 0
									__A   			= word[index]
									__A   			= curr.nodes.get(A )
									# If char not in current trie node
									if not char_node:
													return False
									# Flag to check if node can be deleted
									__A   			= _delete(A							,A							,index + 1 )
									if delete_curr:
													del curr.nodes[char]
													return len(curr.nodes ) == 0
									return delete_curr

					_delete(self							,A							,0 )





def 						UpperCAmelCase			(	a_		,   a_						)		->	None:







				"""simple docstring"""



				if node.is_leaf:
								print(a_		,   end=" "						)

				for key, value in node.nodes.items():
								print_words(a_		,   word + key						)


def 						UpperCAmelCase			(	)		->	bool:







				"""simple docstring"""



				__A   			= "banana bananas bandana band apple all beast".split()
				__A   			= TrieNode()
				root.insert_many(a_						)
				# print_words(root, "")
				assert all(root.find(a_						) for word in words						)
				assert root.find("banana"						)
				assert not root.find("bandanas"						)
				assert not root.find("apps"						)
				assert root.find("apple"						)
				assert root.find("all"						)
				root.delete("all"						)
				assert not root.find("all"						)
				root.delete("banana"						)
				assert not root.find("banana"						)
				assert root.find("bananas"						)
				return True


def 						UpperCAmelCase			(	a_		,   a_						)		->	None:







				"""simple docstring"""



				print(str(a_						)		,   "works!" if passes else "doesn't work :("						)


def 						UpperCAmelCase			(	)		->	None:







				"""simple docstring"""



				assert test_trie()


def 						UpperCAmelCase			(	)		->	None:







				"""simple docstring"""



				print_results("Testing trie functionality"		,   test_trie()						)


if __name__ == "__main__":
					main()








import numpy as np







def 		SCREAMING_SNAKE_CASE							(					__lowerCAmelCase			) ->	np.array:
     return 1 / (1 + np.exp(-vector			))







def 		SCREAMING_SNAKE_CASE							(					__lowerCAmelCase			) ->	np.array:
     return vector * sigmoid(1.7_0_2 * vector			)


if __name__ == "__main__":
 import doctest

 doctest.testmod()