Question

Write a recursive program that requests an answer to the question "Are we there yet?" using an input statement and terminates if the user answers 'yes', but executes a recursive call if the user answers anything else (do not use any loops in this program).

Answer 1

Answer:

def recursive_func():

   x = input("Are we there yet?")

   if x.casefold() == 'Yes'.casefold():

       return

   else:

       recursive_func()

recursive_func()

Explanation:

We define the required function as recursive_func().

The first line takes user input. The user input is stored in variable x.

The next line compares the user input to a string yes. The function executes the else block if the condition isn't met, that is a recursive call is executed.

IF condition returns the function. The string in variable X is compared to a string 'Yes'. the casefold() is a string function that ignores the upper/lower cases when comparing two strings. (This is important because a string 'yes' is not the same yes a string 'Yes' or 'YES'. Two equal strings means their cases and length should match).