[seqfan] Re: Parking lot for bad drivers

[Vladimir Shevelev]

It is important that no car was blocked. For example,
in Veikko's variant the car a(1,1) is blocked, such that
even a good driver could not leave, if the leaving is through
the right border. Then David's variant is the best.
If the leaving is through either right or downside, then
the Rob's variant is the best.
Finally, if to ignore such a requirement (e.g., the leaving is 
through  all borders), then we have 36 cars:

XX_XX_XX
XX_XX_XX
________
XX_XX_XX
XX_XX_XX
________
XX_XX_XX
XX_XX_XX



Best regards,
Vladimir

________________________________________
From: SeqFan [seqfan-bounces at list.seqfan.eu] on behalf of Dale Gerdemann [dale.gerdemann at gmail.com]
Sent: 15 July 2015 19:58
To: Sequence Fanatics Discussion list
Subject: [seqfan] Re: Parking lot for bad drivers

The 30 car solution seems to me to conform to Patricia Marx's text.  What
misinterpretation do you think you made?

I don't know why Marx's solution to her own problem only had 16 cars. Maybe
she had in mind some unstated conditions or, more likely in my opinion, she
just didn't work very hard on coming up with an optimal solution.

On Wednesday, July 15, 2015, Veikko Pohjola <veikko at nordem.fi> wrote:

> Ok, seems that I misinterpreted.
> Sorry
>
> Veikko Pohjola kirjoitti 15.7.2015 kello 18.52:
>
> > I got 30.
> >
> > X_X_X_X_
> > X______X
> > _XX_X_X_
> > XX_XX_XX
> > ___X_X_X
> > XX___X__
> > _X_XX_XX
> > X___XX__
> >
> > Veikko
> >
> > _______________________________________________
> >
> > Seqfan Mailing list - http://list.seqfan.eu/
>
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>

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