


'''simple docstring'''







from __future__ import annotations


class 				__lowerCamelCase				:
    """simple docstring"""


    def __init__(						self    :							int   ,							SCREAMING_SNAKE_CASE    :							int):
           _A  :			int											=      value
           _A  :			Node | None											=      None
           _A  :			Node | None											=      None




class 				__lowerCamelCase				:
    """simple docstring"""
    a									=					42


    def __init__(						self    :							Any):
           _A  :			str											=      0


    def      A					(						self    :							Optional[Any]   ,							SCREAMING_SNAKE_CASE    :							Node | None   ,							SCREAMING_SNAKE_CASE    :							int):
           if node is None:
                  return

           if path_sum == self.target:
                  self.paths += 1

           if node.left:
                  self.depth_first_search(node.left   ,							path_sum + node.left.value)
           if node.right:
                  self.depth_first_search(node.right   ,							path_sum + node.right.value)


    def      A					(						self    :							Optional[Any]   ,							SCREAMING_SNAKE_CASE    :							Node | None   ,							SCREAMING_SNAKE_CASE    :							int | None = None):
           if node is None:
                  return 0
           if target is not None:
                  _A  :			List[Any]											=      target

           self.depth_first_search(SCREAMING_SNAKE_CASE   ,							node.value)
           self.path_sum(node.left)
           self.path_sum(node.right)

           return self.paths


if __name__ == "__main__":
   import doctest

   doctest.testmod()










'''simple docstring'''







A   :  Optional[Any]       		=				{
    '''0000''': '''0''',
    '''0001''': '''1''',
    '''0010''': '''2''',
    '''0011''': '''3''',
    '''0100''': '''4''',
    '''0101''': '''5''',
    '''0110''': '''6''',
    '''0111''': '''7''',
    '''1000''': '''8''',
    '''1001''': '''9''',
    '''1010''': '''a''',
    '''1011''': '''b''',
    '''1100''': '''c''',
    '''1101''': '''d''',
    '''1110''': '''e''',
    '''1111''': '''f''',
}






def    lowerCAmelCase__ (       lowerCamelCase  :    str     ):
       _A  :			Union[str, Any]											=      str(lowerCamelCase     ).strip()

       # Exceptions
       if not binary_str:
              raise ValueError('Empty string was passed to the function'     )
       _A  :			Any											=      binary_str[0] == '-'
       _A  :			str											=      binary_str[1:] if is_negative else binary_str
       if not all(char in '01' for char in binary_str     ):
              raise ValueError('Non-binary value was passed to the function'     )

       _A  :			Optional[Any]											=      (
           '0' * (4 * (divmod(len(lowerCamelCase     )						,4     )[0] + 1) - len(lowerCamelCase     )) + binary_str
       )

       _A  :			Optional[int]											=      []
       for x in range(0						,len(lowerCamelCase     )						,4     ):
              hexadecimal.append(BITS_TO_HEX[binary_str[x : x + 4]]     )
       _A  :			int											=      '0x' + ''.join(lowerCamelCase     )

       return "-" + hexadecimal_str if is_negative else hexadecimal_str


if __name__ == "__main__":
   from doctest import testmod

   testmod()






