[chbot] Choc fish challenege 3

[Synco Reynders]

hmmm, I'll need some more time to verify that answer.
/s

On 31 August 2011 13:14, Andre Renaud <andre at bluewatersys.com> wrote:

> I've got 73712 for 13 queens, but it takes a noticeable amount of time.
> This is single threaded.
>
> andre at dunstan:~/tmp/queens$ gcc -o queens3 queens_single.c -O3 -g -Wall
> -pipe -lm && time ./queens3
> 13 queens = 73712 solutions
>
> real    5m56.986s
> user    3m57.079s
> sys     0m0.508s
>
>
> Regards,
> Andre
>
>
> On 31/08/11 12:46, Synco Reynders wrote:
> > Hi All,
> >   Now I'm willing to put up a chocolate fish for the person who can tell
> > how many solutions there are for the largest n.
> > I include all rotations / mirrored results. So for example:
> > For n=4 there are 2 solutions
> > For n=5 there are 10 solutions
> > For n=6 there are 4 solutions
> > For n=7 there are 40 solutions
> > ...
> > For n=10 there are 724 solutions
> > ...
> > Good-luck,
> > /s
>
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