I immediately recognized this image to be from End of Evangelion.

Well done. Keep on practising and improving and your life will change. C is love, C is life.

Your code raised a question that never came to my mind before. What actually happens here? To my understanding there are two strings “Yes” and “No” within the scope of this function. But are they accessible from outside of the function?

After looking it up, it appears to be totally valid: Lifetime of a string literal in C That’s probably what’s implied in the comment line directly above the if.