Write a function in Python POP(Arr), where Arr is a stack implemented by a list of numbers.

Q. Write a function in Python POP(Arr), where Arr is a stack implemented by a list of numbers. The function returns the value deleted from the stack. 

Answer :-

def POP(Arr):
      Arr.pop()
      return Arr

stack = [ ]
while True :
      print()
      print("Enter your choice 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 choice :- ")
      if user == "insert" :
            num = int(input("Enter a number :- "))
            stack.append(num)
      elif user == "delete" :
            if stack == [ ]:
                  print("UnderFlow")
            else :
                  stack = POP(stack)
      else :
            break
print("Now our stack = ",stack)

Output :-

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

Enter your choice :- insert
Enter a number :- 47

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

Enter your choice :- insert
Enter a number :- 564

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

Enter your choice :- insert
Enter a number :- 965

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

Enter your choice :- insert
Enter a number :- 4858

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

Enter your choice :- delete

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

Enter your choice :- delete

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

Enter your choice :- insert
Enter a number :- 755

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

Enter your choice :- exit
Now our stack =  [47, 564, 755]
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