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> > Thank you mate, I will start implementing it. The only think that 
> >will have to be diferent is how to mark when there is no edge between 
> >two nodes I will use -1, because 0 is a valid cost. :)
> nil would be a good choice

Also for the INFs; actually, a no-edge should have distance INF, and so, just
substitute INFs by nils all together. It should be faster and makes more sense
in Lua.


A mathematician is a device for turning coffee into theorems.
        -- P. Erdos 

Luis Carvalho
Applied Math PhD Student - Brown University
PGP Key: E820854A <>