Application performance matters, that's why these data structures and algorithm questions still matter. THIS! It's one of my go to stories but back when I was

Application performance matters, that's why these data structures and algorithm questions still matter. THIS! It's one of my go to stories but back when I was working as a co-op during my undergrad days, in my department there was a .NET programmer who was skilled but had no understanding of the underlying data structures. He would be mystified at how I could write Perl programs that would outperform his .NET programs, even on less robust hardware.