Page 90 - PYTHON-12

Program 19: Write a program in Python to add, delete and display elements from a queue
using list.

Solution:

#Implementing List as a Queue - using function append() and pop()

a=[]

c='y'

while (c=='y'):

print ("1. INSERT")

print ("2. DELETE ")

print ("3. Display")

choice=int(input("Enter your choice: "))

if (choice==1):

b=int(input("Enter new number: "))

a.append(b)

elif (choice==2):

if (a==[]):

print("Queue Empty")

else:

print ("Deleted element is:",a[0])

a.pop(0)

elif (choice==3):

l=len(a)

for i in range(0,l):

print (a[i])

else:

print("wrong input")