class Queue:
def __init__(self):
self.queue = DoublyLinkedList()
def add(self, data):
self.queue.add_node(data)
@property
def remove(self):
self.queue.remove_node(1)
@property
def empty(self):
self.queue.lenght = 0
@property
def peek(self):
self.queue.show()
class Stack:
def __init__(self):
self.stack = DoublyLinkedList()
def push(self, data):
self.stack.add_node(data)
@property
def pop(self):
self.stack.remove_node()
@property
def empty(self):
self.stack.lenght = 0
@property
def peek(self):
return self.stack.show(reverse=True)