Quote Originally Posted by Shamino View Post
I've used maps before, but could I really connect like 100 or more zip codes to a single element of a map? Would that be efficient?
I don't see why not? If you just make sure that if you pass this map of sets to functions by reference instead of value there shouldn't be a problem? As for whether it's the most efficient way to figure out if a ZIP code belongs to a band, I don't know, it was just the first idea that came to mind.