Write a program to insert or delete an element from a queue depending upon user's choice elements.

Published: 31 July 2020
on channel: Portal Express

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Write a program to insert or delete an element from a queue depending upon user's choice elements are not shifted after insertion or deletion.

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Data Structure : Stacks and Queues || Q 4 || Type C || Sumita Arora || Class 12 || Computer science

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• Data Structure : Stacks and Queues || Clas...

Answer =

queue = [ ]
deleteno = 0
while True :
print()
print("Enter your choise as per given -")
print("1 = For insert data Enter insert ")
print("2 = For delete data enter delete ")
print("3 = For Exit enter exit ")
print()
user = input("Enter your choise :- ")
if user == "insert" :
data = int(input("Enter the data :- "))
queue.append(data)
elif user == "delete" :
if queue == [ ]:
print("UnderFlow")
else :
queue [ deleteno ] = None
deleteno =+ 1
else :
break
print("Now our Queue = ",queue)

Output :-

Enter your choise as per given -
1 = For insert data Enter insert
2 = For delete data enter delete
3 = For Exit enter exit

Enter your choise :- insert
Enter the data :- 85
Now our Queue = [85]

Enter your choise as per given -
1 = For insert data Enter insert
2 = For delete data enter delete
3 = For Exit enter exit

Enter your choise :- insert
Enter the data :- 56
Now our Queue = [85, 56]

Enter your choise as per given -
1 = For insert data Enter insert
2 = For delete data enter delete
3 = For Exit enter exit

Enter your choise :- insert
Enter the data :- 36
Now our Queue = [85, 56, 36]

Enter your choise as per given -
1 = For insert data Enter insert
2 = For delete data enter delete
3 = For Exit enter exit

Enter your choise :- delete
Now our Queue = [None, 56, 36]

Enter your choise as per given -
1 = For insert data Enter insert
2 = For delete data enter delete
3 = For Exit enter exit

Enter your choise :- insert
Enter the data :- 29
Now our Queue = [None, 56, 36, 29]

Enter your choise as per given -
1 = For insert data Enter insert
2 = For delete data enter delete
3 = For Exit enter exit

Enter your choise :- delete
Now our Queue = [None, None, 36, 29]

Enter your choise as per given -
1 = For insert data Enter insert
2 = For delete data enter delete
3 = For Exit enter exit

Enter your choise :- exit

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