Unnecessary Recursive Calls in user_begin_prompt Function

[abdelazizmohamad11]

In the user_begin_prompt function, if the user provides an invalid input (neither "A" nor "B"), the function recursively calls itself to re-prompt the user. This can lead to excessive recursive calls, especially if the user continues entering invalid inputs, potentially causing a stack overflow. This recursive approach is not ideal for user input validation and can be replaced with a more efficient loop.

Suggested Solution: Replace the recursive calls with a while loop that continues until a valid input is received. This way, the function won’t create new frames on the stack for each invalid input, avoiding possible performance issues.