Array of sets of integers

Can anyone please help me to create an memory-efficient solution for creating an array of sets where each set contains only 32bit unsigned integer. Currently I am using Cell data structure but it seems rather inefficient.

Thanks,

[Triveni]

Can you explain your problem in detail??

Answer 1

[Walter Roberson]

If you saying that you need arrays of sets, each of which consists of no more than 32 elements, then you can use int32() and bitset, bitget, bitand (intersection), bitor (union)