



'''simple docstring'''





from typing import Any






class __A     :



 '''simple docstring'''







 def __init__(self					,  A			)       ->	int:


      """simple docstring"""



      _a           =    data
      _a           =    None



 def __repr__(self			)       ->	str:


      """simple docstring"""



      return f'''Node({self.data})'''






class __A     :



 '''simple docstring'''







 def __init__(self			)       ->	Dict:


      """simple docstring"""



      _a           =    None



 def __iter__(self			)       ->	Any:


      """simple docstring"""



      _a           =    self.head
      while node:
           yield node.data
           _a           =    node.next



 def __len__(self			)       ->	int:


      """simple docstring"""



      return sum(1 for _ in self			)



 def __repr__(self			)       ->	str:


      """simple docstring"""



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



 def __getitem__(self					,  A			)       ->	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					,  A					,  A			)       ->	None:


      """simple docstring"""



      if not 0 <= index < len(self			):
           raise ValueError('''list index out of range.'''			)
      _a           =    self.head
      for _ in range(A			):
           _a           =    current.next
      _a           =    data



 def    a__    (self					,  A			)       ->	None:


      """simple docstring"""



      self.insert_nth(len(self			)					,  A			)



 def    a__    (self					,  A			)       ->	None:


      """simple docstring"""



      self.insert_nth(0					,  A			)



 def    a__    (self					,  A					,  A			)       ->	None:


      """simple docstring"""



      if not 0 <= index <= len(self			):
           raise IndexError('''list index out of range'''			)
      _a           =    Node(A			)
      if self.head is None:
           _a           =    new_node
      elif index == 0:
           _a           =    self.head  # link new_node to head
           _a           =    new_node
      else:
           _a           =    self.head
           for _ in range(index - 1			):
                _a           =    temp.next
           _a           =    temp.next
           _a           =    new_node



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


      """simple docstring"""



      print(self			)



 def    a__    (self			)       ->	Any:


      """simple docstring"""



      return self.delete_nth(0			)



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


      """simple docstring"""



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



 def    a__    (self					,  A = 0			)       ->	Any:


      """simple docstring"""



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



 def    a__    (self			)       ->	bool:


      """simple docstring"""



      return self.head is None



 def    a__    (self			)       ->	None:


      """simple docstring"""



      _a           =    None
      _a           =    self.head

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





def lowerCAmelCase    ():



     """simple docstring"""



     _a           =    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):
          _a           =    -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    ():



     """simple docstring"""



     _a           =    [
         -9,
         100,
         Node(77_345_112),
         '''dlrow olleH''',
         7,
         5_555,
         0,
         -1_92.5_55_55,
         '''Hello, world!''',
         77.9,
         Node(10),
         None,
         None,
         12.20,
     ]
     _a           =    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
     _a           =    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
     _a           =    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
     _a           =    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    ():



     """simple docstring"""



     from doctest import testmod

     testmod()

     _a           =    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]}''')
     _a           =    input('''Enter New Value: ''').strip()
     print('''New list:''')
     print(__A)
     print(F'''length of linked_list is : {len(__A)}''')


if __name__ == "__main__":
  main()








'''simple docstring'''





from __future__ import annotations




def lowerCAmelCase    (__A    ,      __A):



     """simple docstring"""



     if len(__A) == 0:
          return False
     _a           =    len(__A) // 2
     if a_list[midpoint] == item:
          return True
     if item < a_list[midpoint]:
          return binary_search(a_list[:midpoint]    ,      __A)
     else:
          return binary_search(a_list[midpoint + 1 :]    ,      __A)


if __name__ == "__main__":
  lowercase_									=    input("Enter numbers separated by comma:\n").strip()
  lowercase_									=    [int(item.strip()) for item in user_input.split(",")]
  lowercase_									=    int(input("Enter the number to be found in the list:\n").strip())
  lowercase_									=    "" if binary_search(sequence, target) else "not "
  print(F"""{target} was {not_str}found in {sequence}""")



