Member Avatar for Ghostenshell

Trying to put the 4 queue.enqueue into a while loop.
Any suggestions? Files are attached.

from string13 import *
from queue import *


stack1 = Stack()
queue = Queue()
pallist =[]
pallist2 =[]
def main():
    stack1.push(4)
    stack1.push('2')
    stack1.push(1)
    stack1.push(5)

    while not stack1.isEmpty():
        pallist.append(stack1.pop())
    print pallist

    
    """while queue.size < len(pallist):"""
    queue.enqueue(pallist[3])
    queue.enqueue(pallist[2])
    queue.enqueue(pallist[1])
    queue.enqueue(pallist[0])

    while not queue.isEmpty():
        pallist2.append(queue.dequeue())
    
    stack1.push(pallist2)
    
    print stack1.pop()
    
main()
class Queue:
    def __init__(self):
        self.items = []

    def isEmpty(self):
        return self.items == []

    def enqueue(self, item):
        self.items.insert(0,item)

    def dequeue(self):
        return self.items.pop()

    def size(self):
        return len(self.items)
class Stack:
    def __init__(self):
        self.items = []

    def isEmpty(self):
        return self.items == []

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

    def pop(self):
        return self.items.pop()

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

    def size(self):
        return len(self.items)
class Stack:
    def __init__(self):
        self.items = []

    def isEmpty(self):
        return self.items == []

    def push(self, item):
        self.items.insert(0,item)

    def pop(self):
        return self.items.pop(0)

    def peek(self):
        return self.items[0]

    def size(self):
        return len(self.items)
  • 2 Contributors
  • 1 Reply
  • 99 Views
  • 6 Hours Discussion Span
  • Latest Post Latest Post by Gribouillis
Member Avatar for Gribouillis 
>>> range(3,-1,-1)
[3, 2, 1, 0]

Also, consider using the collections.deque class for stacks and queues.

Edited by Gribouillis because: n/a
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