&gt; :<br>&gt; &gt; By the way, I did submit my solution. It improved the score a bit but it<br>&gt; &gt; is still very memory hungry.<br><br> a bit?<br>Currentlly it is the fastest  in 32 bit . the memory/speed problems happens in 64 bit benchmarks. I suppose that the speed is related with the memory leak that will be fixed, Dons said.  Event there doubled the performance of the previous entry.  <div>
<br></div><div>Just to learn; how this last version is faster than the previous entry?  This new version does not use strictness annotations. Is this an example where laziness pays (and indeed causes the memory leak in the 64 bit architectures?</div>
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