




from __future__ import annotations

from typing import Any







def SCREAMING_SNAKE_CASE				(       lowercase_						)   ->       None:



       """simple docstring"""

       create_state_space_tree(lowercase_ ,				[] ,				0						)







def SCREAMING_SNAKE_CASE				(       lowercase_ ,				lowercase_ ,				lowercase_						)   ->       None:



       """simple docstring"""

       if index == len(lowercase_						):
              print(lowercase_						)
              return

       create_state_space_tree(lowercase_ ,				lowercase_ ,				index + 1						)
       current_subsequence.append(sequence[index]						)
       create_state_space_tree(lowercase_ ,				lowercase_ ,				index + 1						)
       current_subsequence.pop()


if __name__ == "__main__":
  _lowerCamelCase	:		list[Any]							       =   [3, 1, 2, 4]
  generate_all_subsequences(seq)

  seq.clear()
  seq.extend(["""A""", """B""", """C"""])
  generate_all_subsequences(seq)



import math




def    lowerCAmelCase_ (     __A							)     ->				bool:







      '''simple docstring'''


      return math.sqrt(__A							) * math.sqrt(__A							) == num




def    lowerCAmelCase_ (     __A							)     ->				bool:







      '''simple docstring'''


      UpperCAmelCase__								=  0
      UpperCAmelCase__								=  n
      while left <= right:
            UpperCAmelCase__								=  (left + right) // 2
            if mid**2 == n:
                  return True
            elif mid**2 > n:
                  UpperCAmelCase__								=  mid - 1
            else:
                  UpperCAmelCase__								=  mid + 1
      return False


if __name__ == "__main__":
      import doctest

      doctest.testmod()



