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Re: Memoryless iterator for integer partitions

by grinder (Bishop)
on Jun 18, 2007 at 20:59 UTC ( #621866=note: print w/replies, xml ) Need Help??


in reply to Memoryless iterator for integer partitions

Interesting. I needed to generate some integer partitions myself for something I was working on the other day and I was surprised to discover that there wasn't anything already available on CPAN.

I searched around, and ran across the same paper. I imemplented both algorithms proposed by Zoghbi and Stojmenovic in that paper, to permit forward and reverse lexicographic orderings and released it as a module.

My only comment is that while your code is very consice, I think you have removed the constant average delay property that the original algorithm features. The algorithm only requires two scalars to maintain state, so it's not as if its a memory pig.

• another intruder with the mooring in the heart of the Perl

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Re^2: Memoryless iterator for integer partitions
by Limbic~Region (Chancellor) on Jun 19, 2007 at 13:31 UTC