





'''simple docstring'''




from __future__ import annotations

from typing import Generic, TypeVar

__UpperCAmelCase         =   TypeVar("""T""")




class       UpperCamelCase__			(			Generic[T]	):




					"""simple docstring"""


					def __init__(		self							:	Union[str, Any]     ,		lowerCamelCase_							:	T		):

							'''simple docstring'''



							SCREAMING_SNAKE_CASE				:							List[Any]						=	data  # Assign data
							SCREAMING_SNAKE_CASE				:							Node[T] | None						=	None  # Initialize next as null
							SCREAMING_SNAKE_CASE				:							Node[T] | None						=	None  # Initialize prev as null







class       UpperCamelCase__			(			Generic[T]	):




					"""simple docstring"""


					def __init__(		self							:	Optional[int]		):

							'''simple docstring'''



							SCREAMING_SNAKE_CASE				:							Node[T] | None						=	None


					def lowerCamelCase_	(		self							:	List[str]     ,		lowerCamelCase_							:	T		):

							'''simple docstring'''



							if self.head is None:
									SCREAMING_SNAKE_CASE				:							str						=	Node(lowerCamelCase_		)
							else:
									SCREAMING_SNAKE_CASE				:							Tuple						=	Node(lowerCamelCase_		)
									SCREAMING_SNAKE_CASE				:							Optional[int]						=	new_node
									SCREAMING_SNAKE_CASE				:							List[str]						=	self.head
									SCREAMING_SNAKE_CASE				:							Any						=	None
									SCREAMING_SNAKE_CASE				:							Dict						=	new_node


					def lowerCamelCase_	(		self							:	int		):

							'''simple docstring'''



							if self.head is None:
									return None
							else:
									assert self.head is not None
									SCREAMING_SNAKE_CASE				:							Tuple						=	self.head.data
									SCREAMING_SNAKE_CASE				:							str						=	self.head.next
									if self.head is not None:
											SCREAMING_SNAKE_CASE				:							str						=	None
									return temp


					def lowerCamelCase_	(		self							:	List[Any]		):

							'''simple docstring'''



							return self.head.data if self.head is not None else None


					def __len__(		self							:	Union[str, Any]		):

							'''simple docstring'''



							SCREAMING_SNAKE_CASE				:							Any						=	self.head
							SCREAMING_SNAKE_CASE				:							Dict						=	0
							while temp is not None:
									count += 1
									SCREAMING_SNAKE_CASE				:							List[Any]						=	temp.next
							return count


					def lowerCamelCase_	(		self							:	Optional[Any]		):

							'''simple docstring'''



							return self.head is None



					def lowerCamelCase_	(		self							:	str		):

							'''simple docstring'''



							print("""stack elements are:"""		)
							SCREAMING_SNAKE_CASE				:							Dict						=	self.head
							while temp is not None:
									print(temp.data     ,		end="""->"""		)
									SCREAMING_SNAKE_CASE				:							List[Any]						=	temp.next


# Code execution starts here
if __name__ == "__main__":
							# Start with the empty stack
							__UpperCAmelCase         =   Stack()

							# Insert 4 at the beginning. So stack becomes 4->None
							print("""Stack operations using Doubly LinkedList""")
							stack.push(4)

							# Insert 5 at the beginning. So stack becomes 4->5->None
							stack.push(5)

							# Insert 6 at the beginning. So stack becomes 4->5->6->None
							stack.push(6)

							# Insert 7 at the beginning. So stack becomes 4->5->6->7->None
							stack.push(7)

							# Print the stack
							stack.print_stack()

							# Print the top element
							print("""\nTop element is """, stack.top())

							# Print the stack size
							print("""Size of the stack is """, len(stack))

							# pop the top element
							stack.pop()

							# pop the top element
							stack.pop()

							# two elements have now been popped off
							stack.print_stack()

							# Print True if the stack is empty else False
							print("""\nstack is empty:""", stack.is_empty())










'''simple docstring'''




from __future__ import annotations



def 						__A						(       lowerCamelCase_					):


		"""simple docstring"""



		if len(lowerCamelCase_					) == 0:
				raise ValueError("""find_min() arg is an empty sequence"""					)
		SCREAMING_SNAKE_CASE				:							Union[str, Any]						=	nums[0]
		for num in nums:
				SCREAMING_SNAKE_CASE				:							Union[str, Any]						=	min(lowerCamelCase_	,	lowerCamelCase_					)
		return min_num


if __name__ == "__main__":
							import doctest

							doctest.testmod(verbose=True)



