Using a dictionary is another way.
On Thu, Mar 6, 2014 at 3:30 PM, Roger Hui <rogerhui.can...@gmail.com> wrote: > Yes, that's the cost. The trick is to avoid initializing count altogether, > because for this subproblem M is much greater than n. The answer is > algorithmic and not a matter of using this or that C operation. > > Recently I had occasion to use the trick for M=65536 and n about 5000. As > originally posed, I think the intention was that M would be zillions. > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
