Hal Fulton wrote: > Robert Klemme wrote: >>> >>> So yeah, I ended up using an array of arrays. But it >>> just felt wrong. >> >> >> To me a Hash feels wrong. Why? Because you don't make any use of >> hash properties for fast lookup. You just iterate in plain order. >> > > I never use a hash for fast lookup. I use it because it > allows me easily to associate an arbitrary key with a > value. Um... So you're saying that you wouldn't bother if lookups were O(n)? Wow! Kind regards robert