Python-Programs/queue.py at main · aichaitanya/Python-Programs · GitHub

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# -*- coding: utf-8 -*-
"""
Created on Wed Apr 17 12:16:02 2019

@author: Patil
"""

class queue:
    def __init__(self):
        self.item=[]

    def empty(self):
        return self.item==[]
    def enque(self):
        a=int(input('Enter Element : '))
        self.item.append(a)
        print(self.item)
    def deque(self):
        if self.empty():
            print('Queue Underflow')
        else : print('Dequeued : ',self.item.pop(0))
        print(self.item)
    def prinq(self):
        print(self.item)

q=queue()

c=1

while(c==1):
    print('1.Insert 2. Remove 3. Print')
    op=int(input('Enter Option : '))
    if op==1:
        q.enque()
    elif op==2:
        if q.empty():
            print('Underflow')
        else : q.deque()
    elif op==3:
        if q.empty():
            print('Underflow')
        else : q.prinq()
    else : print('Invalid')

    c=int(input('Continue 1/0 : '))

'''
1.Insert 2. Remove 3. Print

Enter Option : 1

Enter Element : 11
[11]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 1

Enter Element : 11
[11, 11]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 1

Enter Element : 22
[11, 11, 22]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 1

Enter Element : 33
[11, 11, 22, 33]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 1

Enter Element : 44
[11, 11, 22, 33, 44]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 1

Enter Element : 55
[11, 11, 22, 33, 44, 55]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 2
Dequeued :  11
[11, 22, 33, 44, 55]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 3
[11, 22, 33, 44, 55]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 2
Dequeued :  11
[22, 33, 44, 55]

Continue 1/0 : 1
1.Insert 2. Remove 3. Print

Enter Option : 3
[22, 33, 44, 55]

Continue 1/0 : 0

'''