from collections.abc import Callable


class      lowerCamelCase_					:






    '''simple docstring'''






    def __init__(     self			,			__lowercase = None)	->     None:
        # Stores actual heap items.
        __UpperCamelCase					:list        =		[]
        # Stores indexes of each item for supporting updates and deletion.
        __UpperCamelCase					:dict        =		{}
        # Stores current size of heap.
        __UpperCamelCase					:Tuple        =		0
        # Stores function used to evaluate the score of an item on which basis ordering
        # will be done.
        __UpperCamelCase					:List[str]        =		key or (lambda __lowercase: x)







    def       UpperCamelCase__       (     self			,			__lowercase)	->     int | None:
        return int((i - 1) / 2) if i > 0 else None







    def       UpperCamelCase__       (     self			,			__lowercase)	->     int | None:
        __UpperCamelCase					:int        =		int(2 * i + 1)
        return left if 0 < left < self.size else None







    def       UpperCamelCase__       (     self			,			__lowercase)	->     int | None:
        __UpperCamelCase					:Any        =		int(2 * i + 2)
        return right if 0 < right < self.size else None







    def       UpperCamelCase__       (     self			,			__lowercase			,			__lowercase)	->     None:
        __UpperCamelCase  ,	__UpperCamelCase					:Dict        =		(
            self.pos_map[self.arr[j][0]],
            self.pos_map[self.arr[i][0]],
        )
        # Then swap the items in the list.
        __UpperCamelCase  ,	__UpperCamelCase					:Optional[int]        =		self.arr[j], self.arr[i]







    def       UpperCamelCase__       (     self			,			__lowercase			,			__lowercase)	->     bool:
        return self.arr[i][1] < self.arr[j][1]







    def       UpperCamelCase__       (     self			,			__lowercase)	->     int:
        __UpperCamelCase					:Dict        =		self._left(__lowercase)
        __UpperCamelCase					:Optional[int]        =		self._right(__lowercase)
        __UpperCamelCase					:Dict        =		i

        if left is not None and not self._cmp(__lowercase			,			__lowercase):
            __UpperCamelCase					:Optional[int]        =		left
        if right is not None and not self._cmp(__lowercase			,			__lowercase):
            __UpperCamelCase					:Tuple        =		right

        return valid_parent







    def       UpperCamelCase__       (     self			,			__lowercase)	->     None:
        __UpperCamelCase					:int        =		self._parent(__lowercase)
        while parent is not None and not self._cmp(__lowercase			,			__lowercase):
            self._swap(__lowercase			,			__lowercase)
            __UpperCamelCase  ,	__UpperCamelCase					:Tuple        =		parent, self._parent(__lowercase)







    def       UpperCamelCase__       (     self			,			__lowercase)	->     None:
        __UpperCamelCase					:Optional[Any]        =		self._get_valid_parent(__lowercase)
        while valid_parent != index:
            self._swap(__lowercase			,			__lowercase)
            __UpperCamelCase  ,	__UpperCamelCase					:Dict        =		valid_parent, self._get_valid_parent(__lowercase)







    def       UpperCamelCase__       (     self			,			__lowercase			,			__lowercase)	->     None:
        if item not in self.pos_map:
            return
        __UpperCamelCase					:Tuple        =		self.pos_map[item]
        __UpperCamelCase					:Tuple        =		[item, self.key(__lowercase)]
        # Make sure heap is right in both up and down direction.
        # Ideally only one of them will make any change.
        self._heapify_up(__lowercase)
        self._heapify_down(__lowercase)







    def       UpperCamelCase__       (     self			,			__lowercase)	->     None:
        if item not in self.pos_map:
            return
        __UpperCamelCase					:List[Any]        =		self.pos_map[item]
        del self.pos_map[item]
        __UpperCamelCase					:int        =		self.arr[self.size - 1]
        __UpperCamelCase					:Union[str, Any]        =		index
        self.size -= 1
        # Make sure heap is right in both up and down direction. Ideally only one
        # of them will make any change- so no performance loss in calling both.
        if self.size > index:
            self._heapify_up(__lowercase)
            self._heapify_down(__lowercase)







    def       UpperCamelCase__       (     self			,			__lowercase			,			__lowercase)	->     None:
        __UpperCamelCase					:Union[str, Any]        =		len(self.arr)
        if arr_len == self.size:
            self.arr.append([item, self.key(__lowercase)])
        else:
            __UpperCamelCase					:Optional[Any]        =		[item, self.key(__lowercase)]
        __UpperCamelCase					:Optional[Any]        =		self.size
        self.size += 1
        self._heapify_up(self.size - 1)







    def       UpperCamelCase__       (     self)	->     tuple | None:
        return self.arr[0] if self.size else None







    def       UpperCamelCase__       (     self)	->     tuple | None:
        __UpperCamelCase					:Tuple        =		self.get_top()
        if top_item_tuple:
            self.delete_item(top_item_tuple[0])
        return top_item_tuple



def lowerCamelCase  (       ):
    '''simple docstring'''









if __name__ == "__main__":
    import doctest

    doctest.testmod()






from __future__ import annotations

from math import pi



def lowerCamelCase  (       SCREAMING_SNAKE_CASE  ,      SCREAMING_SNAKE_CASE  ,      SCREAMING_SNAKE_CASE     ):
    '''simple docstring'''







    if (inductance, frequency, reactance).count(0     ) != 1:
        raise ValueError('''One and only one argument must be 0'''     )
    if inductance < 0:
        raise ValueError('''Inductance cannot be negative'''     )
    if frequency < 0:
        raise ValueError('''Frequency cannot be negative'''     )
    if reactance < 0:
        raise ValueError('''Inductive reactance cannot be negative'''     )
    if inductance == 0:
        return {"inductance": reactance / (2 * pi * frequency)}
    elif frequency == 0:
        return {"frequency": reactance / (2 * pi * inductance)}
    elif reactance == 0:
        return {"reactance": 2 * pi * frequency * inductance}
    else:
        raise ValueError('''Exactly one argument must be 0'''     )


if __name__ == "__main__":
    import doctest

    doctest.testmod()





