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class Stack:     def __init__(self):         self.items = []     def is_empty(self):         return not self.items     def push(self, items):         self.items.append(items)     def pop(self):         return self.items.pop()          def peek(self):          return self.items[-1]     def size(self):          return len(self.items)          def __str__(self):         return str(self.items)      if __name__ == "__main__":     s = Stack()     print(s)     print(s.is_empty())     s.push(3)     print(s)     s.push(7)     s.push(5)     print(s)     print(s.pop())     print(s)     print(s.peek())     print(s.size())     HOW TO REVERSE THIS PYTHON CODE USING STACKS AND BY NOT USING SLICING?

class Stack:     def __init__(self):         self.items = []     def is_empty(self):         return not self.items     def push(self, items):         self.items.append(items)     def pop(self):         return self.items.pop()          def peek(self):          return self.items[-1]     def size(self):          return len(self.items)          def __str__(self):         return str(self.items)      if __name__ == "__main__":     s = Stack()     print(s)     print(s.is_empty())     s.push(3)     print(s)     s.push(7)     s.push(5)     print(s)     print(s.pop())     print(s)     print(s.peek())     print(s.size())     HOW TO REVERSE THIS PYTHON CODE USING STACKS AND BY NOT USING SLICING?

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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class Stack:
    def __init__(self):
        self.items = []

    def is_empty(self):
        return not self.items

    def push(self, items):
        self.items.append(items)

    def pop(self):
        return self.items.pop()
    
    def peek(self): 
        return self.items[-1]

    def size(self): 
        return len(self.items)
    
    def __str__(self):
        return str(self.items)
    
if __name__ == "__main__":
    s = Stack()
    print(s)
    print(s.is_empty())
    s.push(3)
    print(s)
    s.push(7)
    s.push(5)
    print(s)
    print(s.pop())
    print(s)
    print(s.peek())
    print(s.size())

 

 

HOW TO REVERSE THIS PYTHON CODE USING STACKS AND BY NOT USING SLICING?

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