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There is a 5×5 grid. You have to fill 25 squares with 0 & 1. Every neighboring square's number's product has to be 0.,,

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There is a 5×5 grid in front of you. You have to fill 25 squares with only 0 and 1. But, every neighboring square's number's product has to be 0. How many possible grids there are?

posted Jan 5, 2019 by anonymous

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1 Answer

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There are 2 possible patterns to fill the grid, every 1 must have 0 in neighboring square, see picture


enter image description here

answer Jan 16, 2019 by Hanifa Mammadov



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