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Assignment of colored boxes to groups

Here's a mixed integer linear programming formulation that I used to find an optimal solution with objective value $1506$ for your $10 \times 9$ instance. Let $(c_{ij})$ be the given (sparse) cost ...
RobPratt's user avatar
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Google-OR Tools: Assignment minimizing overlapping members

Thank you Erwin Kalvelagen and Zayenz for the detailed and insightful responses. I was able to get the model coded in the .NET version of Google OR Tools, I'm pasting that below. One peculiarity was ...
James Kolpack's user avatar

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