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Optimising layout of items in a grid

  1. #1
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    Optimising layout of items in a grid

    Hi, all,

    I figure this should probably be done in VBA, though I could be wrong.

    I've got a grid of variable size - let's say 9*9 for argument's sake. In this grid, I want to lay out two values - let's say A and B - with the constraint that every A must be horizontally or vertically adjacent to a B. Diagonal matches don't count.

    How can I maximise the number of A's in the grid?

  2. #2
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    Re: Optimising layout of items in a grid

    This is a heuristic/brute force-type approach:

    checks.xlsm

    DoEvents is in in case you need to Ctrl-C out of an endless loop (but won't happen for the 4x4 grid)

    I'm not sure it's a viable solution for a 9 x 9 grid though, I haven't tried.

    If you need maximum crunching ability, you could implement this as pure-vba quite easily.

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