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Reconstructing 3-colored grids from horizontal and vertical projections is NP-hard

ALGORITHMS - ESA 2009, PROCEEDINGS, (2009): 776-+

Cited by: 31|Views95
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Abstract

We consider the problem of coloring a grid using k colors with the restriction that in each row and each column has an specific number of cells of each color. In an already classical result, Ryser obtained a necessary and sufficient condition for the existence of such a coloring when two colors are considered. This characterization yields...More

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