Actually, this reminded me of a terrible problem I had for Mathematical Analysis 1 exam. It was the only problem that wasn't a proof and it took a form of some really hard integral in terms of x… but it was integration in terms of dy. XD
That's what you get when your lecturer is (in)famous for his legendary pedantry. Although credit where it's due, he was so surprised that some people actually managed to compute it that he gave points for it anyway, but it had to be spotless. I think that people scored only either 0/10 or 10/10 for this problem, no in-betweens.