In general one should not post errors of other … but well I just give the best answers, no questions, no names … and of course: it’s a good laugh 😀
Notation for describing graphs is not quite clear to some people. I also miss the mother nodes: […] nodes in the dependency graph are depending on father nodes, sister nodes and brother nodes […]
Asking for advantages and disadvantages of a certain approach I got within the same answer: […] advantage: program is faster, disadvantage: program would be slower […]
Please note that I assume that these answer come out of the stress of the people writing the test and not the missing knowledge.