Question

A list contains the following records of customers.

[Customer_name, Room Type]

Write the following user-defined functions to perform given operations on the stack named 'Hotel':

1. Push_Cust() - Push customers names of those customers who are staying in the 'Delux' Room Type.
2. Pop_Cust() - Pop the names of customers from the stack and display them. Also, display "Underflow" when there are no customers in the stack.

For example:
If the lists with customer details are as follows:

["Siddarth", "Delux"]
["Rahul", "Standard"]
["Jerry", "Delux"]

The stack should contain

Jerry
Siddharth 

The output should be:

Jerry
Siddharth 
Underflow

Answer 1

stack=[]
def Push_Cust(Lst):
    if Lst[1]=="Delux":
         stack.append(Lst[0])
def Pop_Cust():
     if len(stack)==0:
            print("Underflow")
else:
     stack.pop()