If you're against using linear indexing and loops, the only other alternative, AFAIK, is logical indexing. But if y always comes in the form you've suggested, you'll need to create a logical matrix from the indices specified in y .
I don't see the need for the logical mask; e.g.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.