






"""simple docstring"""



class    lowercase__			:


			def __init__(      self     :  List[str]   ,       snake_case__     :  Tuple   ,       snake_case__     :  List[str]=None   ,       snake_case__     :  Optional[int]=None					):
										lowerCamelCase_       :							Optional[Any]									=data
										lowerCamelCase_       :							List[Any]									=previous
										lowerCamelCase_       :							int									=next_node


			def __str__(      self     :  Tuple					):
										return F"""{self.data}"""


			def 	UpperCAmelCase__						(      self     :  int					):
										return self.data


			def 	UpperCAmelCase__						(      self     :  List[str]					):
										return self.next


			def 	UpperCAmelCase__						(      self     :  Optional[int]					):
										return self.previous







class    lowercase__			:


			def __init__(      self     :  int   ,       snake_case__     :  Optional[Any]					):
										lowerCamelCase_       :							Any									=head


			def __iter__(      self     :  Optional[Any]					):
										return self


			def 	UpperCAmelCase__						(      self     :  Optional[int]					):





										if not self.current:
																	raise StopIteration
										else:
																	lowerCamelCase_       :							Union[str, Any]									=self.current.get_data()
																	lowerCamelCase_       :							Optional[Any]									=self.current.get_next()
																	return value







class    lowercase__			:


			def __init__(      self     :  List[Any]					):
										lowerCamelCase_       :							Dict									=None  # First node in list
										lowerCamelCase_       :							Optional[int]									=None  # Last node in list


			def __str__(      self     :  str					):
										lowerCamelCase_       :							Any									=self.head
										lowerCamelCase_       :							List[Any]									=[]
										while current is not None:
																	nodes.append(current.get_data()					)
																	lowerCamelCase_       :							str									=current.get_next()
										return " ".join(str(__SCREAMING_SNAKE_CASE					) for node in nodes					)


			def __contains__(      self     :  List[Any]   ,       snake_case__     :  List[str]					):
										lowerCamelCase_       :							Optional[Any]									=self.head
										while current:
																	if current.get_data() == value:
																								return True
																	lowerCamelCase_       :							int									=current.get_next()
										return False


			def __iter__(      self     :  List[str]					):
										return LinkedListIterator(self.head					)


			def 	UpperCAmelCase__						(      self     :  Optional[Any]					):





										if self.head:
																	return self.head.get_data()
										return None


			def 	UpperCAmelCase__						(      self     :  Any					):





										if self.tail:
																	return self.tail.get_data()
										return None


			def 	UpperCAmelCase__						(      self     :  List[Any]   ,       snake_case__     :  Union[str, Any]					):





										if self.head is None:
																	lowerCamelCase_       :							int									=node
																	lowerCamelCase_       :							List[Any]									=node
										else:
																	self.insert_before_node(self.head   ,       __SCREAMING_SNAKE_CASE					)


			def 	UpperCAmelCase__						(      self     :  List[Any]   ,       snake_case__     :  Dict					):





										if self.head is None:
																	self.set_head(__SCREAMING_SNAKE_CASE					)
										else:
																	self.insert_after_node(self.tail   ,       __SCREAMING_SNAKE_CASE					)


			def 	UpperCAmelCase__						(      self     :  Optional[Any]   ,       snake_case__     :  List[Any]					):
										lowerCamelCase_       :							Dict									=Node(__SCREAMING_SNAKE_CASE					)
										if self.head is None:
																	self.set_head(__SCREAMING_SNAKE_CASE					)
										else:
																	self.set_tail(__SCREAMING_SNAKE_CASE					)


			def 	UpperCAmelCase__						(      self     :  Optional[int]   ,       snake_case__     :  Optional[int]   ,       snake_case__     :  Any					):
										lowerCamelCase_       :							Dict									=node
										lowerCamelCase_       :							List[str]									=node.previous

										if node.get_previous() is None:
																	lowerCamelCase_       :							Union[str, Any]									=node_to_insert
										else:
																	lowerCamelCase_       :							Optional[Any]									=node_to_insert

										lowerCamelCase_       :							Any									=node_to_insert


			def 	UpperCAmelCase__						(      self     :  Dict   ,       snake_case__     :  str   ,       snake_case__     :  List[str]					):
										lowerCamelCase_       :							Optional[Any]									=node
										lowerCamelCase_       :							Dict									=node.next

										if node.get_next() is None:
																	lowerCamelCase_       :							Union[str, Any]									=node_to_insert
										else:
																	lowerCamelCase_       :							Any									=node_to_insert

										lowerCamelCase_       :							Union[str, Any]									=node_to_insert


			def 	UpperCAmelCase__						(      self     :  Tuple   ,       snake_case__     :  List[Any]   ,       snake_case__     :  Optional[int]					):
										lowerCamelCase_       :							List[str]									=1
										lowerCamelCase_       :							Tuple									=Node(__SCREAMING_SNAKE_CASE					)
										lowerCamelCase_       :							Dict									=self.head
										while node:
																	if current_position == position:
																								self.insert_before_node(__SCREAMING_SNAKE_CASE   ,       __SCREAMING_SNAKE_CASE					)
																								return
																	current_position += 1
																	lowerCamelCase_       :							List[Any]									=node.next
										self.insert_after_node(self.tail   ,       __SCREAMING_SNAKE_CASE					)


			def 	UpperCAmelCase__						(      self     :  Optional[int]   ,       snake_case__     :  str					):
										lowerCamelCase_       :							Optional[Any]									=self.head
										while node:
																	if node.get_data() == item:
																								return node
																	lowerCamelCase_       :							Tuple									=node.get_next()
										raise Exception("Node not found"					)


			def 	UpperCAmelCase__						(      self     :  Dict   ,       snake_case__     :  int					):





										if (node := self.get_node(__SCREAMING_SNAKE_CASE					)) is not None:
																	if node == self.head:
																								lowerCamelCase_       :							Union[str, Any]									=self.head.get_next()

																	if node == self.tail:
																								lowerCamelCase_       :							List[Any]									=self.tail.get_previous()

																	self.remove_node_pointers(__SCREAMING_SNAKE_CASE					)


			@staticmethod
			def 	UpperCAmelCase__						(      snake_case__     :  Tuple					):





										if node.get_next():
																	lowerCamelCase_       :							str									=node.previous

										if node.get_previous():
																	lowerCamelCase_       :							List[Any]									=node.next

										lowerCamelCase_       :							Optional[Any]									=None
										lowerCamelCase_       :							Dict									=None


			def 	UpperCAmelCase__						(      self     :  List[Any]					):
										return self.head is None


def  _snake_case				(     )				->	Dict:
							pass







if __name__ == "__main__":
						import doctest

						doctest.testmod()





'''simple docstring'''







import unittest

from knapsack import greedy_knapsack as kp






class  lowerCAmelCase__   (  unittest.TestCase     ):






					def 	_snake_case    (   self		):


											"""simple docstring"""





											lowercase_	:     List[str]													=       [10, 20, 30, 40, 50, 60]
											lowercase_	:     Optional[Any]													=       [2, 4, 6, 8, 10, 12]
											lowercase_	:     Union[str, Any]													=       1_00
											self.assertEqual(kp.calc_profit(__SCREAMING_SNAKE_CASE				,							__SCREAMING_SNAKE_CASE				,							__SCREAMING_SNAKE_CASE		)				,							2_10		)






					def 	_snake_case    (   self		):


											"""simple docstring"""





											self.assertRaisesRegex(__SCREAMING_SNAKE_CASE				,							'''max_weight must greater than zero.'''		)






					def 	_snake_case    (   self		):


											"""simple docstring"""





											self.assertRaisesRegex(__SCREAMING_SNAKE_CASE				,							'''Weight can not be negative.'''		)






					def 	_snake_case    (   self		):


											"""simple docstring"""





											self.assertRaisesRegex(__SCREAMING_SNAKE_CASE				,							'''Profit can not be negative.'''		)






					def 	_snake_case    (   self		):


											"""simple docstring"""





											self.assertRaisesRegex(__SCREAMING_SNAKE_CASE				,							'''max_weight must greater than zero.'''		)






					def 	_snake_case    (   self		):


											"""simple docstring"""





											self.assertRaisesRegex(
											    __SCREAMING_SNAKE_CASE				,							'''The length of profit and weight must be same.'''		)


if __name__ == "__main__":
							unittest.main()



