On Aug 23, 7:35 pm, Robert McIntyre <r...@mit.edu> wrote:
> I hear you --- I got excited about this too, and implemented the fannuchredux
> algorithm, only to be thwarted by an undocumented "checksum" each
> program is also
> supposed to calculate.  This checksum depends heavily on the exact
> order in which
> a set of permutations are traversed. And of course, they aren't
> traversed in lexical order,
> but whatever order the original implementation used.


By design - "This checksum depends heavily on the exact order in which
a set of permutations are traversed." - people kept finding ways to
not generate some of the permutations or used faster algorithms to
generate the permutations - so fannkuch-redux now allows little
flexibility.

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