





from typing import Any
class SCREAMING_SNAKE_CASE_						:






						def __init__(      self      :      Tuple		,   _A      :      Any	)							->    Optional[Any]:







							"""simple docstring"""


							snake_case_		:			Dict											=	data
							snake_case_		:			List[str]											=	None






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







							"""simple docstring"""


							return F"""Node({self.data})"""
class SCREAMING_SNAKE_CASE_						:






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







							"""simple docstring"""


							snake_case_		:			Union[str, Any]											=	None






						def __iter__(      self      :      Union[str, Any]	)							->    Any:







							"""simple docstring"""


							snake_case_		:			int											=	self.head
							while node:
								yield node.data
								snake_case_		:			Union[str, Any]											=	node.next






						def __len__(      self      :      List[str]	)							->    int:







							"""simple docstring"""


							return sum(1 for _ in self	)






						def __repr__(      self      :      int	)							->    str:







							"""simple docstring"""


							return "->".join([str(_A	) for item in self]	)






						def __getitem__(      self      :      Dict		,   _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      :      Optional[int]		,   _A      :      int		,   _A      :      Any	)							->    None:







							"""simple docstring"""


							if not 0 <= index < len(self	):
								raise ValueError('list index out of range.'	)
							snake_case_		:			str											=	self.head
							for _ in range(_A	):
								snake_case_		:			Tuple											=	current.next
							snake_case_		:			Optional[int]											=	data






						def UpperCAmelCase_				(      self      :      Dict		,   _A      :      Any	)							->    None:







							"""simple docstring"""


							self.insert_nth(len(self	)		,   _A	)






						def UpperCAmelCase_				(      self      :      Dict		,   _A      :      Any	)							->    None:







							"""simple docstring"""


							self.insert_nth(0		,   _A	)






						def UpperCAmelCase_				(      self      :      Union[str, Any]		,   _A      :      int		,   _A      :      Any	)							->    None:







							"""simple docstring"""


							if not 0 <= index <= len(self	):
								raise IndexError('list index out of range'	)
							snake_case_		:			Optional[Any]											=	Node(_A	)
							if self.head is None:
								snake_case_		:			List[str]											=	new_node
							elif index == 0:
								snake_case_		:			int											=	self.head  # link new_node to head
								snake_case_		:			Dict											=	new_node
							else:
								snake_case_		:			List[Any]											=	self.head
								for _ in range(index - 1	):
									snake_case_		:			int											=	temp.next
								snake_case_		:			int											=	temp.next
								snake_case_		:			Tuple											=	new_node






						def UpperCAmelCase_				(      self      :      Tuple	)							->    None:  # print every node data







							"""simple docstring"""


							print(self	)






						def UpperCAmelCase_				(      self      :      Dict	)							->    Any:







							"""simple docstring"""


							return self.delete_nth(0	)






						def UpperCAmelCase_				(      self      :      Dict	)							->    Any:  # delete from tail







							"""simple docstring"""


							return self.delete_nth(len(self	) - 1	)






						def UpperCAmelCase_				(      self      :      Any		,   _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.'	)
							snake_case_		:			Tuple											=	self.head  # default first node
							if index == 0:
								snake_case_		:			Tuple											=	self.head.next
							else:
								snake_case_		:			List[Any]											=	self.head
								for _ in range(index - 1	):
									snake_case_		:			Tuple											=	temp.next
								snake_case_		:			Optional[int]											=	temp.next
								snake_case_		:			str											=	temp.next.next
							return delete_node.data






						def UpperCAmelCase_				(      self      :      Any	)							->    bool:







							"""simple docstring"""


							return self.head is None






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







							"""simple docstring"""


							snake_case_		:			List[str]											=	None
							snake_case_		:			Tuple											=	self.head

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


def 							SCREAMING_SNAKE_CASE__						(    ):
	snake_case_		:			Tuple											=	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   ):
		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 							SCREAMING_SNAKE_CASE__						(    ):
	snake_case_		:			Dict											=	[
	    -9,
	    1_00,
	    Node(77_34_51_12   ),
	    'dlrow olleH',
	    7,
	    55_55,
	    0,
	    -192.55555,
	    'Hello, world!',
	    77.9,
	    Node(10   ),
	    None,
	    None,
	    12.20,
	]
	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
	snake_case_		:			int											=	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
	snake_case_		:			Optional[int]											=	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
	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 							SCREAMING_SNAKE_CASE__						(    ):
	from doctest import testmod

	testmod()

	snake_case_		:			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]}"""   )
	snake_case_		:			List[Any]											=	input('Enter New Value: '   ).strip()
	print('New list:'   )
	print(__a   )
	print(f"""length of linked_list is : {len(__a   )}"""   )


if __name__ == "__main__":
						main()








from typing import TYPE_CHECKING

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


_SCREAMING_SNAKE_CASE      	=		{"""configuration_swin""": ["""SWIN_PRETRAINED_CONFIG_ARCHIVE_MAP""", """SwinConfig""", """SwinOnnxConfig"""]}


try:
						if not is_torch_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						_SCREAMING_SNAKE_CASE      	=		[
						    """SWIN_PRETRAINED_MODEL_ARCHIVE_LIST""",
						    """SwinForImageClassification""",
						    """SwinForMaskedImageModeling""",
						    """SwinModel""",
						    """SwinPreTrainedModel""",
						    """SwinBackbone""",
						]

try:
						if not is_tf_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						_SCREAMING_SNAKE_CASE      	=		[
						    """TF_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST""",
						    """TFSwinForImageClassification""",
						    """TFSwinForMaskedImageModeling""",
						    """TFSwinModel""",
						    """TFSwinPreTrainedModel""",
						]

if TYPE_CHECKING:
						from .configuration_swin import SWIN_PRETRAINED_CONFIG_ARCHIVE_MAP, SwinConfig, SwinOnnxConfig

						try:
												if not is_torch_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .modeling_swin import (
												    SWIN_PRETRAINED_MODEL_ARCHIVE_LIST,
												    SwinBackbone,
												    SwinForImageClassification,
												    SwinForMaskedImageModeling,
												    SwinModel,
												    SwinPreTrainedModel,
												)

						try:
												if not is_tf_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .modeling_tf_swin import (
												    TF_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST,
												    TFSwinForImageClassification,
												    TFSwinForMaskedImageModeling,
												    TFSwinModel,
												    TFSwinPreTrainedModel,
												)

else:
						import sys

						_SCREAMING_SNAKE_CASE      	=		_LazyModule(__name__, globals()["""__file__"""], _import_structure, module_spec=__spec__)

