




from typing import Any







class 					lowerCamelCase		:





     def __init__(self				:   List[Any]    ,   _A				:   Any       )						->						List[str]:
         snake_case								= data
         snake_case								= None





     def __repr__(self				:   Any       )						->						str:
         return f'Node({self.data})'







class 					lowerCamelCase		:





     def __init__(self				:   Any       )						->						List[str]:
         snake_case								= None





     def __iter__(self				:   Optional[int]       )						->						Any:
         snake_case								= self.head
         while node:
             yield node.data
             snake_case								= node.next





     def __len__(self				:   int       )						->						int:
         return sum(1 for _ in self       )





     def __repr__(self				:   Optional[int]       )						->						str:
         return "->".join([str(_A       ) for item in self]       )





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





     def 		UpperCAmelCase(self				:   Optional[Any]    ,   _A				:   Any       )						->						None:
         self.insert_nth(len(self       )    ,   _A       )





     def 		UpperCAmelCase(self				:   str    ,   _A				:   Any       )						->						None:
         self.insert_nth(0    ,   _A       )





     def 		UpperCAmelCase(self				:   int    ,   _A				:   int    ,   _A				:   Any       )						->						None:
         if not 0 <= index <= len(self       ):
             raise IndexError("list index out of range"       )
         snake_case								= Node(_A       )
         if self.head is None:
             snake_case								= new_node
         elif index == 0:
             snake_case								= self.head  # link new_node to head
             snake_case								= new_node
         else:
             snake_case								= self.head
             for _ in range(index - 1       ):
                 snake_case								= temp.next
             snake_case								= temp.next
             snake_case								= new_node





     def 		UpperCAmelCase(self				:   int       )						->						None:  # print every node data
         print(self       )





     def 		UpperCAmelCase(self				:   Dict       )						->						Any:
         return self.delete_nth(0       )





     def 		UpperCAmelCase(self				:   Optional[int]       )						->						Any:  # delete from tail
         return self.delete_nth(len(self       ) - 1       )





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





     def 		UpperCAmelCase(self				:   Optional[int]       )						->						bool:
         return self.head is None





     def 		UpperCAmelCase(self				:   int       )						->						None:
         snake_case								= None
         snake_case								= self.head

         while current:
             # Store the current node's next node.
             snake_case								= current.next
             # Make the current node's next point backwards
             snake_case								= prev
             # Make the previous node be the current node
             snake_case								= current
             # Make the current node the next node (to progress iteration)
             snake_case								= next_node
         # Return prev in order to put the head at the end
         snake_case								= prev



def 						lowercase_      (       )							->							None:
    """simple docstring"""

    snake_case								= 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								= -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 						lowercase_      (       )							->							None:
    """simple docstring"""

    snake_case								= [
        -9,
        100,
        Node(7734_5112		),
        "dlrow olleH",
        7,
        5555,
        0,
        -192.55555,
        "Hello, world!",
        77.9,
        Node(10		),
        None,
        None,
        12.20,
    ]
    snake_case								= 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								= 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								= 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								= 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 						lowercase_      (       )							->							List[Any]:
    """simple docstring"""

    from doctest import testmod

    testmod()

    snake_case								= 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								= input("Enter New Value: "		).strip()
    print("New list:"		)
    print(A__		)
    print(F'length of linked_list is : {len(A__		)}'		)


if __name__ == "__main__":
   main()



import warnings
from collections import OrderedDict
from typing import Mapping

from packaging import version

from ...configuration_utils import PretrainedConfig
from ...onnx import OnnxConfig
from ...utils import logging


_A   =			logging.get_logger(__name__)

_A   =			{
    "nvidia/segformer-b0-finetuned-ade-512-512": (
        "https://huggingface.co/nvidia/segformer-b0-finetuned-ade-512-512/resolve/main/config.json"
    ),
    # See all SegFormer models at https://huggingface.co/models?filter=segformer
}







class 					lowerCamelCase		(  A_  ):
     UpperCAmelCase__    :							List[Any]									=		"segformer"





     def __init__(self				:   List[Any]    ,   _A				:   int=3    ,   _A				:   List[Any]=4    ,   _A				:   Any=[2, 2, 2, 2]    ,   _A				:   Dict=[8, 4, 2, 1]    ,   _A				:   List[Any]=[3_2, 6_4, 1_6_0, 2_5_6]    ,   _A				:   Tuple=[7, 3, 3, 3]    ,   _A				:   Optional[int]=[4, 2, 2, 2]    ,   _A				:   Dict=[1, 2, 5, 8]    ,   _A				:   int=[4, 4, 4, 4]    ,   _A				:   Dict="gelu"    ,   _A				:   Tuple=0.0    ,   _A				:   Optional[Any]=0.0    ,   _A				:   List[Any]=0.1    ,   _A				:   Union[str, Any]=0.02    ,   _A				:   Dict=0.1    ,   _A				:   List[Any]=1E-6    ,   _A				:   List[str]=2_5_6    ,   _A				:   Optional[Any]=2_5_5    ,   **_A				:   str    ,   )						->						Tuple:
         super().__init__(**_A       )

         if "reshape_last_stage" in kwargs and kwargs["reshape_last_stage"] is False:
             warnings.warn(
                 "Reshape_last_stage is set to False in this config. This argument is deprecated and will soon be"
                 " removed, as the behaviour will default to that of reshape_last_stage = True."    ,   _A    ,   )

         snake_case								= num_channels
         snake_case								= num_encoder_blocks
         snake_case								= depths
         snake_case								= sr_ratios
         snake_case								= hidden_sizes
         snake_case								= patch_sizes
         snake_case								= strides
         snake_case								= mlp_ratios
         snake_case								= num_attention_heads
         snake_case								= hidden_act
         snake_case								= hidden_dropout_prob
         snake_case								= attention_probs_dropout_prob
         snake_case								= classifier_dropout_prob
         snake_case								= initializer_range
         snake_case								= drop_path_rate
         snake_case								= layer_norm_eps
         snake_case								= decoder_hidden_size
         snake_case								= kwargs.get("reshape_last_stage"    ,   _A       )
         snake_case								= semantic_loss_ignore_index







class 					lowerCamelCase		(  A_  ):
     UpperCAmelCase__    :							Optional[Any]									=		version.parse("1.11"  )





     @property
     def 		UpperCAmelCase(self				:   Tuple       )						->						Mapping[str, Mapping[int, str]]:
         return OrderedDict(
             [
                 ("pixel_values", {0: "batch", 1: "num_channels", 2: "height", 3: "width"}),
             ]       )





     @property
     def 		UpperCAmelCase(self				:   Tuple       )						->						float:
         return 1E-4





     @property
     def 		UpperCAmelCase(self				:   List[str]       )						->						int:
         return 1_2

