I've been coming over this question
which specifically asks about
I'm looking for suggestions on how to improve the usage of modern C++ features with this simple graph search algorithm, particularly with regard to the use of STL containers and lambda expressions.
As far as I can see that's all done fine, and I have no idea how to improve that further.
Does that deserve an answer like
Your code is fine don't worry
Maybe with some additional note, that it's good to use
auto keywords and lambda expressions?
How should such question be handled?