I posted this last night, but not sure it went through to the list as I don't see it in my sent items and I never got any responses.� Sorry if it is duplicate.<br><br>I'm hoping someone could offer an example or advice on how to best use unordered_set or unordered_map to hold many small arrays of unsigned integers.<br> I would like to use the built in hash function rather than have to create one.� Also, since I have many of these small arrays, keeping the memory footprint small and the hash time at a minimum are important concerns.<br><br> A typical int array would hold 5 unsigned ints.<br><br>Maybe someone could offer example code or suggestions.� The samples I see are always the trivial case of just entering a single number or string as key or value.<br><br> Thanks. <br>