I remember this open book exam on graphs… one of the questions was “take this algorithm that’s in all books, invert the condition you’re optimizing for and writ

I remember this open book exam on graphs… one of the questions was “take this algorithm that’s in all books, invert the condition you’re optimizing for and write the new algorithm in pseudo code”. No I don’t remember which particular algorithm it was, it’s been a bit. 80% of my mates didn’t solve it. It was right there in any graph algo book. It does not help you if you don’t understand the material. If the exam is done right at least.