Absolute laziest approach, 10 billion numbers entries laid out sequentially. At 2 bytes for each entry, that's only 20GB. That's less than I can fit in some fai

Absolute laziest approach, 10 billion numbers entries laid out sequentially. At 2 bytes for each entry, that's only 20GB. That's less than I can fit in some fairly cheap consumer box. Would that work? Just an array in C. Or are there interesting performance problems I'd be likely to run into?