C++ - Post increment logic in Numeric expressions

Question

Where error in my logic?
https://code.sololearn.com/cFtbZbbbc8wO/?ref=app

Answer 1

Robin : Thank. I agree.

Answer 2

I understand. I myself would never write code like this. But the fact is that the behavior of the program code is not very obvious in this case (behavior of the i ++ / i execution point - (Post Increment / Decrement). Behavior is different in Java and in C ++. In other languages (I did not check versions of the compiler) And I asked myself a question after a couple of top three local tests on this topic. And it became just interesting. Therefore, I asked the question: “maybe someone knows the correct answer to such a question?”.