


"""simple docstring"""



from typing import Any






class 		__snake_case :





 """simple docstring"""


 def __init__(   self ,						__lowerCamelCase  ):



     '''simple docstring'''




     __A   :						Union[str, Any]									=					data
     __A   :						Any									=					None







 def __repr__(   self  ):



     '''simple docstring'''




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






class 		__snake_case :





 """simple docstring"""


 def __init__(   self  ):



     '''simple docstring'''




     __A   :						int									=					None

 def __iter__(   self  ):



     '''simple docstring'''




     __A   :						Tuple									=					self.head
     while node:
         yield node.data
         __A   :						Dict									=					node.next

 def __len__(   self  ):



     '''simple docstring'''




     return sum(1 for _ in self  )

 def __repr__(   self  ):



     '''simple docstring'''




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

 def __getitem__(   self ,						__lowerCamelCase  ):



     '''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 ,						__lowerCamelCase ,						__lowerCamelCase  ):



     '''simple docstring'''




     if not 0 <= index < len(self  ):
         raise ValueError('''list index out of range.'''  )
     __A   :						int									=					self.head
     for _ in range(__lowerCamelCase  ):
         __A   :						Union[str, Any]									=					current.next
     __A   :						Any									=					data

 def  UpperCamelCase__(   self ,						__lowerCamelCase  ):



     '''simple docstring'''




     self.insert_nth(len(self  ) ,						__lowerCamelCase  )

 def  UpperCamelCase__(   self ,						__lowerCamelCase  ):



     '''simple docstring'''




     self.insert_nth(0 ,						__lowerCamelCase  )

 def  UpperCamelCase__(   self ,						__lowerCamelCase ,						__lowerCamelCase  ):



     '''simple docstring'''




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

 def  UpperCamelCase__(   self  ):  # print every node data



     '''simple docstring'''




     print(self  )

 def  UpperCamelCase__(   self  ):



     '''simple docstring'''




     return self.delete_nth(0  )

 def  UpperCamelCase__(   self  ):  # delete from tail



     '''simple docstring'''




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

 def  UpperCamelCase__(   self ,						__lowerCamelCase = 0  ):



     '''simple docstring'''




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

 def  UpperCamelCase__(   self  ):



     '''simple docstring'''




     return self.head is None







 def  UpperCamelCase__(   self  ):



     '''simple docstring'''




     __A   :						str									=					None
     __A   :						int									=					self.head

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







def 		__lowercase					(       )       ->Tuple:



    '''simple docstring'''







    __A   :						Union[str, Any]									=					LinkedList()
    assert linked_list.is_empty() is True
    assert str(snake_case_						) == ""

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

    linked_list.insert_head(0						)
    linked_list.insert_tail(11						)
    assert str(snake_case_						) == "->".join(str(snake_case_						) 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(snake_case_						) == 9
    assert str(snake_case_						) == "->".join(str(snake_case_						) 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						):
        __A   :						Optional[int]									=					-i
    assert all(linked_list[i] == -i for i in range(0    ,9						)						) is True

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







def 		__lowercase					(       )       ->Dict:



    '''simple docstring'''







    __A   :						List[str]									=					[
        -9,
        100,
        Node(77345112						),
        'dlrow olleH',
        7,
        5555,
        0,
        -192.55555,
        'Hello, world!',
        77.9,
        Node(10						),
        None,
        None,
        12.20,
    ]
    __A   :						Optional[int]									=					LinkedList()

    for i in test_input:
        linked_list.insert_tail(snake_case_						)

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

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

    # Delete the tail
    __A   :						Tuple									=					linked_list.delete_tail()
    assert result == 12.2
    assert (
        str(snake_case_						) == "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
    __A   :						Optional[Any]									=					linked_list.delete_nth(10						)
    assert result is None
    assert (
        str(snake_case_						) == "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(snake_case_						)
        == "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(snake_case_						)
    assert (
        str(snake_case_						)
        == "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(snake_case_						)
        == "None->None->Node(10)->77.9->Hello, world!->-192.55555->0->5555->"
        "7->dlrow olleH->Node(77345112)->100->Node(Hello again, world!)"
    )







def 		__lowercase					(       )       ->Optional[int]:



    '''simple docstring'''







    from doctest import testmod

    testmod()

    __A   :						Dict									=					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(snake_case_						)
    print('''\nReading/changing Node data using indexing:'''						)
    print(F"""Element at Position 1: {linked_list[1]}"""						)
    __A   :						Optional[Any]									=					input('''Enter New Value: '''						).strip()
    print('''New list:'''						)
    print(snake_case_						)
    print(F"""length of linked_list is : {len(snake_case_						)}"""						)


if __name__ == "__main__":
       main()











"""simple docstring"""



from typing import TYPE_CHECKING

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


a_			=      {
    """configuration_tapas""": ["""TAPAS_PRETRAINED_CONFIG_ARCHIVE_MAP""", """TapasConfig"""],
    """tokenization_tapas""": ["""TapasTokenizer"""],
}

try:
       if not is_torch_available():
              raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
       pass
else:
       a_			=      [
           """TAPAS_PRETRAINED_MODEL_ARCHIVE_LIST""",
           """TapasForMaskedLM""",
           """TapasForQuestionAnswering""",
           """TapasForSequenceClassification""",
           """TapasModel""",
           """TapasPreTrainedModel""",
           """load_tf_weights_in_tapas""",
       ]
try:
       if not is_tf_available():
              raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
       pass
else:
       a_			=      [
           """TF_TAPAS_PRETRAINED_MODEL_ARCHIVE_LIST""",
           """TFTapasForMaskedLM""",
           """TFTapasForQuestionAnswering""",
           """TFTapasForSequenceClassification""",
           """TFTapasModel""",
           """TFTapasPreTrainedModel""",
       ]


if TYPE_CHECKING:
       from .configuration_tapas import TAPAS_PRETRAINED_CONFIG_ARCHIVE_MAP, TapasConfig
       from .tokenization_tapas import TapasTokenizer

       try:
              if not is_torch_available():
                     raise OptionalDependencyNotAvailable()
       except OptionalDependencyNotAvailable:
              pass
       else:
              from .modeling_tapas import (
                  TAPAS_PRETRAINED_MODEL_ARCHIVE_LIST,
                  TapasForMaskedLM,
                  TapasForQuestionAnswering,
                  TapasForSequenceClassification,
                  TapasModel,
                  TapasPreTrainedModel,
                  load_tf_weights_in_tapas,
              )

       try:
              if not is_tf_available():
                     raise OptionalDependencyNotAvailable()
       except OptionalDependencyNotAvailable:
              pass
       else:
              from .modeling_tf_tapas import (
                  TF_TAPAS_PRETRAINED_MODEL_ARCHIVE_LIST,
                  TFTapasForMaskedLM,
                  TFTapasForQuestionAnswering,
                  TFTapasForSequenceClassification,
                  TFTapasModel,
                  TFTapasPreTrainedModel,
              )


else:
       import sys

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




