

from typing import Any






class _UpperCamelCase							:
			'''simple docstring'''







			def __init__(	self							:       Dict					,					a							:       Any		)							->				Any:

				"""simple docstring"""

				SCREAMING_SNAKE_CASE      :					int    =				data
				SCREAMING_SNAKE_CASE      :					int    =				None






			def __repr__(	self							:       str		)							->				str:

				"""simple docstring"""

				return F"Node({self.data})"






class _UpperCamelCase							:
			'''simple docstring'''







			def __init__(	self							:       List[str]		)							->				Optional[Any]:

				"""simple docstring"""

				SCREAMING_SNAKE_CASE      :					Any    =				None
			def __iter__(	self							:       Any		)							->				Any:

				"""simple docstring"""

				SCREAMING_SNAKE_CASE      :					Union[str, Any]    =				self.head
				while node:
					yield node.data
					SCREAMING_SNAKE_CASE      :					List[str]    =				node.next
			def __len__(	self							:       str		)							->				int:

				"""simple docstring"""

				return sum(1 for _ in self		)
			def __repr__(	self							:       Optional[Any]		)							->				str:

				"""simple docstring"""

				return "->".join([str(a		) for item in self]		)
			def __getitem__(	self							:       List[Any]					,					a							:       int		)							->				Any:

				"""simple docstring"""

				if not 0 <= index < len(self		):
					raise ValueError("list index out of range."		)
				for i, node in enumerate(self		):
					if i == index:
						return node
				return None
			def __setitem__(	self							:       Tuple					,					a							:       int					,					a							:       Any		)							->				None:

				"""simple docstring"""

				if not 0 <= index < len(self		):
					raise ValueError("list index out of range."		)
				SCREAMING_SNAKE_CASE      :					str    =				self.head
				for _ in range(a		):
					SCREAMING_SNAKE_CASE      :					str    =				current.next
				SCREAMING_SNAKE_CASE      :					Any    =				data
			def 							__UpperCamelCase       (	self							:       List[str]					,					a							:       Any		)							->				None:

				"""simple docstring"""

				self.insert_nth(len(self		)					,					a		)
			def 							__UpperCamelCase       (	self							:       Union[str, Any]					,					a							:       Any		)							->				None:

				"""simple docstring"""

				self.insert_nth(0					,					a		)
			def 							__UpperCamelCase       (	self							:       Optional[Any]					,					a							:       int					,					a							:       Any		)							->				None:

				"""simple docstring"""

				if not 0 <= index <= len(self		):
					raise IndexError("list index out of range"		)
				SCREAMING_SNAKE_CASE      :					Any    =				Node(a		)
				if self.head is None:
					SCREAMING_SNAKE_CASE      :					Optional[int]    =				new_node
				elif index == 0:
					SCREAMING_SNAKE_CASE      :					Optional[int]    =				self.head  # link new_node to head
					SCREAMING_SNAKE_CASE      :					List[Any]    =				new_node
				else:
					SCREAMING_SNAKE_CASE      :					Optional[Any]    =				self.head
					for _ in range(index - 1		):
						SCREAMING_SNAKE_CASE      :					Optional[int]    =				temp.next
					SCREAMING_SNAKE_CASE      :					Optional[int]    =				temp.next
					SCREAMING_SNAKE_CASE      :					int    =				new_node
			def 							__UpperCamelCase       (	self							:       Optional[int]		)							->				None:  # print every node data

				"""simple docstring"""

				print(self		)
			def 							__UpperCamelCase       (	self							:       int		)							->				Any:

				"""simple docstring"""

				return self.delete_nth(0		)
			def 							__UpperCamelCase       (	self							:       Any		)							->				Any:  # delete from tail

				"""simple docstring"""

				return self.delete_nth(len(self		) - 1		)
			def 							__UpperCamelCase       (	self							:       List[str]					,					a							:       int = 0		)							->				Any:

				"""simple docstring"""

				if not 0 <= index <= len(self		) - 1:  # test if index is valid
					raise IndexError("List index out of range."		)
				SCREAMING_SNAKE_CASE      :					Tuple    =				self.head  # default first node
				if index == 0:
					SCREAMING_SNAKE_CASE      :					List[str]    =				self.head.next
				else:
					SCREAMING_SNAKE_CASE      :					Optional[Any]    =				self.head
					for _ in range(index - 1		):
						SCREAMING_SNAKE_CASE      :					Any    =				temp.next
					SCREAMING_SNAKE_CASE      :					List[Any]    =				temp.next
					SCREAMING_SNAKE_CASE      :					List[str]    =				temp.next.next
				return delete_node.data
			def 							__UpperCamelCase       (	self							:       List[Any]		)							->				bool:

				"""simple docstring"""

				return self.head is None






			def 							__UpperCamelCase       (	self							:       Optional[int]		)							->				None:

				"""simple docstring"""

				SCREAMING_SNAKE_CASE      :					Dict    =				None
				SCREAMING_SNAKE_CASE      :					str    =				self.head

				while current:
					# Store the current node's next node.
					SCREAMING_SNAKE_CASE      :					Any    =				current.next
					# Make the current node's next point backwards
					SCREAMING_SNAKE_CASE      :					List[Any]    =				prev
					# Make the previous node be the current node
					SCREAMING_SNAKE_CASE      :					Any    =				current
					# Make the current node the next node (to progress iteration)
					SCREAMING_SNAKE_CASE      :					str    =				next_node
				# Return prev in order to put the head at the end
				SCREAMING_SNAKE_CASE      :					Optional[Any]    =				prev

def        lowerCamelCase__       (    ):
	SCREAMING_SNAKE_CASE      :					Union[str, Any]    =				LinkedList()
	assert linked_list.is_empty() is True
	assert str(_a) == ""

	try:
		linked_list.delete_head()
		raise AssertionError  # This should not happen.
	except IndexError:
		assert True  # This should happen.

	try:
		linked_list.delete_tail()
		raise AssertionError  # This should not happen.
	except IndexError:
		assert True  # This should happen.

	for i in range(10):
		assert len(_a) == i
		linked_list.insert_nth(_a							,	i + 1)
	assert str(_a) == "->".join(str(_a) for i in range(1							,	11))

	linked_list.insert_head(0)
	linked_list.insert_tail(11)
	assert str(_a) == "->".join(str(_a) for i in range(0							,	12))

	assert linked_list.delete_head() == 0
	assert linked_list.delete_nth(9) == 10
	assert linked_list.delete_tail() == 11
	assert len(_a) == 9
	assert str(_a) == "->".join(str(_a) for i in range(1							,	10))

	assert all(linked_list[i] == i + 1 for i in range(0							,	9)) is True

	for i in range(0							,	9):
		SCREAMING_SNAKE_CASE      :					str    =				-i
	assert all(linked_list[i] == -i for i in range(0							,	9)) is True

	linked_list.reverse()
	assert str(_a) == "->".join(str(_a) for i in range(-8							,	1))

def        lowerCamelCase__       (    ):
	SCREAMING_SNAKE_CASE      :					Optional[Any]    =				[
	    -9,
	    100,
	    Node(77345112),
	    "dlrow olleH",
	    7,
	    5555,
	    0,
	    -192.5_5555,
	    "Hello, world!",
	    77.9,
	    Node(10),
	    None,
	    None,
	    12.20,
	]
	SCREAMING_SNAKE_CASE      :					List[Any]    =				LinkedList()

	for i in test_input:
		linked_list.insert_tail(_a)

	# Check if it's empty or not
	assert linked_list.is_empty() is False
	assert (
	    str(_a) == "-9->100->Node(77345112)->dlrow olleH->7->5555->0->"
	    "-192.55555->Hello, world!->77.9->Node(10)->None->None->12.2"
	)

	# Delete the head
	SCREAMING_SNAKE_CASE      :					List[Any]    =				linked_list.delete_head()
	assert result == -9
	assert (
	    str(_a) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
	    "Hello, world!->77.9->Node(10)->None->None->12.2"
	)

	# Delete the tail
	SCREAMING_SNAKE_CASE      :					Any    =				linked_list.delete_tail()
	assert result == 12.2
	assert (
	    str(_a) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
	    "Hello, world!->77.9->Node(10)->None->None"
	)

	# Delete a node in specific location in linked list
	SCREAMING_SNAKE_CASE      :					Any    =				linked_list.delete_nth(10)
	assert result is None
	assert (
	    str(_a) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
	    "Hello, world!->77.9->Node(10)->None"
	)

	# Add a Node instance to its head
	linked_list.insert_head(Node("Hello again, world!"))
	assert (
	    str(_a)
	    == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
	    "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None"
	)

	# Add None to its tail
	linked_list.insert_tail(_a)
	assert (
	    str(_a)
	    == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
	    "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None->None"
	)

	# Reverse the linked list
	linked_list.reverse()
	assert (
	    str(_a)
	    == "None->None->Node(10)->77.9->Hello, world!->-192.55555->0->5555->"
	    "7->dlrow olleH->Node(77345112)->100->Node(Hello again, world!)"
	)

def        lowerCamelCase__       (    ):
	from doctest import testmod

	testmod()

	SCREAMING_SNAKE_CASE      :					Optional[int]    =				LinkedList()
	linked_list.insert_head(input("Inserting 1st at head ").strip())
	linked_list.insert_head(input("Inserting 2nd at head ").strip())
	print("\nPrint list:")
	linked_list.print_list()
	linked_list.insert_tail(input("\nInserting 1st at tail ").strip())
	linked_list.insert_tail(input("Inserting 2nd at tail ").strip())
	print("\nPrint list:")
	linked_list.print_list()
	print("\nDelete head")
	linked_list.delete_head()
	print("Delete tail")
	linked_list.delete_tail()
	print("\nPrint list:")
	linked_list.print_list()
	print("\nReverse linked list")
	linked_list.reverse()
	print("\nPrint list:")
	linked_list.print_list()
	print("\nString representation of linked list:")
	print(_a)
	print("\nReading/changing Node data using indexing:")
	print(f"Element at Position 1: {linked_list[1]}")
	SCREAMING_SNAKE_CASE      :					Dict    =				input("Enter New Value: ").strip()
	print("New list:")
	print(_a)
	print(f"length of linked_list is : {len(_a)}")


if __name__ == "__main__":
			main()




from collections import deque

from .hash_table import HashTable




class 					snake_case__						(       lowerCAmelCase_     ):






     """simple docstring"""


     def __init__(       self  :  Optional[Any], *_snake_case  :  Optional[Any], **_snake_case  :  List[Any]					)   ->Optional[int]:
            super().__init__(*_snake_case, **_snake_case					)






     def    lowercase_   (       self  :  Optional[Any], _snake_case  :  Tuple, _snake_case  :  Dict					)   ->Dict:
            snake_case__							:	int   	=	deque([]					) if self.values[key] is None else self.values[key]
            self.values[key].appendleft(_snake_case					)
            snake_case__							:	Dict   	=	self.values[key]






     def    lowercase_   (       self  :  Any					)   ->Optional[Any]:
            return (
                sum(self.charge_factor - len(_snake_case					) for slot in self.values					)
                / self.size_table
                * self.charge_factor
            )






     def    lowercase_   (       self  :  Union[str, Any], _snake_case  :  str, _snake_case  :  Optional[int]=None					)   ->Optional[Any]:
            if not (
                len(self.values[key]					) == self.charge_factor and self.values.count(_snake_case					) == 0
            ):
                   return key
            return super()._collision_resolution(_snake_case, _snake_case					)






