The model is from this paper:https://link.springer.com/content/pdf/1 ... 0248-1.pdf
The model is an optimization model in which the objective is to minimize costs over all scenarios resulting from the selection of the pre-positioning locations and facility sizes, the commodity acquisition and the stocking decisions, the shipments of the supplies to the demand points, unmet demand penalties, and holding costs for unused material.Pre-positioning planning for emergency response with service quality constraints
The problem at the moment is that the distance limits are not taken into account and the specified links (a(n,nn)) are not met.
The compiler is not telling any problem, but the solution is 0. Where is the problem in this code?
Sorry that the names in the code are in german. Thats because the lesson is in german.