Write a program that keeps track of where cars are located in a parking garage to estimate the time to retrieve a car when the garage is full. This program will demonstrate the following:. How to create a list for use as a stack,
How to enter and change data in a stack.

Provided in the explanation section

Explanation:

Code to use;

# Define the main() function.

def main():

   # Declare the required variables.

   stack_cars = []

   move_time = 1

   retrieve_time = 2

   # Start the loop to display the menu.

   while True:

       # Display the choices to the user.

       print("\n\t\t\t Car Stack Menu")

       print("\n1. Add a car")

       print("2. Retrieve a car")

       print("3. Show the car stack")

       print("4. Exit")

       # Prompt the user to enter the input.

       choice = input("\nEnter your choice: ")

       # Append the car in the stack if the choice is 1.

       if choice == '1':

           car = input("Enter the car name to add: ")

           stack_cars.append(car)

       # Remove the car from the stack if the choice is 2.

       elif choice == '2':

           car = input("Enter the car name to retrieve: ")

           # Display the error message if the car is not present.

           if car not in stack_cars:

               print(car + " is not present in the stack.")

           # Otherwise, compute the time to retrieve a car.

           else:

               # Declare a temp stack to move the cars.

               temp = []

               x = stack_cars.pop()

               count = 0

               # Start the loop to pop the cars from the stack

               # until the car to be retrieved is found.

               while x != car:

                   count += 1

                   # Store the car in the temp stack.

                   temp.append(x)

                   x = stack_cars.pop()

               # Start the loop to move the cars back in the

               # original stack.

               while len(temp) != 0:

                   stack_cars.append(temp.pop())

               # Compute and display the total time.

               total_time = move_time * count + retrieve_time

               print("Total time to retrieve", car, "=", total_time)

       # Display the stack if the choice is 3.

       elif choice == '3':

           print("Car stack =", stack_cars)

       # Return from the funtion if the choice is 4.

       elif choice == '4':

           print("Exiting from the program...")

           return

       # Display the message for invalid input.

       else:

           print("Error: Invalid choice!")

# Call the main() function.

if __name__ == "__main__":

   main()

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