Ah yes, the classic "let me solve this simple problem with the most unnecessarily complex solution possible" approach. Two mutually recursive functions to check if a number is even or odd? This has ChatGPT's fingerprints all over it.
Meanwhile, every developer with more than 3 brain cells is screaming: return (n % 2 == 0); and calling it a day.
This is what happens when you ask AI to "make it elegant" or "optimize this function." You get code that looks impressive in a technical interview but would get you publicly shamed in a code review.