

class _UpperCamelCase							:  # Public class to implement a graph
			'''simple docstring'''







			def __init__(			self							: Tuple      ,      a							: int      ,      a							: int      ,      a							: list[list[bool]]	)							->       None:

				"""simple docstring"""

				SCREAMING_SNAKE_CASE   :      int				     =       row
				SCREAMING_SNAKE_CASE   :      Optional[int]				     =       col
				SCREAMING_SNAKE_CASE   :      Dict				     =       graph
			def 							__UpperCamelCase (			self							: List[str]      ,      a							: int      ,      a							: int      ,      a							: list[list[bool]]	)							->       bool:

				"""simple docstring"""

				return (
				    0 <= i < self.ROW
				    and 0 <= j < self.COL
				    and not visited[i][j]
				    and self.graph[i][j]
				)
			def 							__UpperCamelCase (			self							: List[Any]      ,      a							: int      ,      a							: int      ,      a							: list[list[bool]]	)							->       None:

				"""simple docstring"""

				SCREAMING_SNAKE_CASE   :      List[Any]				     =       [-1, -1, -1, 0, 0, 1, 1, 1]  # Coordinate order
				SCREAMING_SNAKE_CASE   :      int				     =       [-1, 0, 1, -1, 1, -1, 0, 1]
				SCREAMING_SNAKE_CASE   :      List[Any]				     =       True  # Make those cells visited
				for k in range(8	):
					if self.is_safe(i + row_nbr[k]      ,      j + col_nbr[k]      ,      a	):
						self.diffs(i + row_nbr[k]      ,      j + col_nbr[k]      ,      a	)






			def 							__UpperCamelCase (			self							: str	)							->       int:  # And finally, count all islands.

				"""simple docstring"""

				SCREAMING_SNAKE_CASE   :      Dict				     =       [[False for j in range(self.COL	)] for i in range(self.ROW	)]
				SCREAMING_SNAKE_CASE   :      Union[str, Any]				     =       0
				for i in range(self.ROW	):
					for j in range(self.COL	):
						if visited[i][j] is False and self.graph[i][j] == 1:
							self.diffs(a      ,      a      ,      a	)
							count += 1
				return count


import math

def  lowerCamelCase__ (					_a							,			_a):
	if (
	    not isinstance(_a							,			(int, float))
	    or power_factor < -1
	    or power_factor > 1
	):
		raise ValueError("power_factor must be a valid float value between -1 and 1.")
	return apparent_power * power_factor

def  lowerCamelCase__ (					_a							,			_a):
	if (
	    not isinstance(_a							,			(int, float))
	    or power_factor < -1
	    or power_factor > 1
	):
		raise ValueError("power_factor must be a valid float value between -1 and 1.")
	return apparent_power * math.sqrt(1 - power_factor**2)


if __name__ == "__main__":
			import doctest

			doctest.testmod()