I'm scurrying off to look up Hamiltonin paths...in the meantime, any thoughts on my trying to use the regex engine to control the backtracking?

When you coded your N-Queens solution, was it easier or harder than a recursive subroutine? Would you do it again?

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
If I understand your problem, I can solve it! Of course, the same can be said for you.

In reply to Re: Re: Detecting transpositions by BrowserUk
in thread Detecting transpositions by BrowserUk

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