# Questions tagged [minizinc]

MiniZinc is a high level solver-independent constraint modeling language.

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### optimizing choosing subset of best items

I have a simple problem that doesn't perform well at the moment. I have a set of ~1000 candidates, from which I want to choose ~10 optimal candidates. They all have a score, and the optimal subset is ...
1 vote
55 views

### Tents and trees constraints

I am trying to express the constraints for the 'Tents and trees' puzzle in minizinc but I am a bit stuck... I can express that each tent must be attached to at least one tree That a tree must be ...
91 views

### Data Formulation for Mixed-Integer-Programming Models

Until now, I have used the Gurobi, CPLEX and OR-Tools (GCO) interface to formulate mixed-integer-programming models. Recently, I have discovered MiniZinc and want to utilize it to formulate big ...
1 vote
83 views

### Multiplicity-Constraint in Constraint Programming Solvers

I need to solve a CSP with a constraint imposing upper bounds on the multiplicity of variables in a list. More precisely, I need a constraint of the form ...
173 views

### Why MiniZinc do not do convert to linear constraint a quadratic constraint?

I would like to know which are the advantage to do not convert quadratic expressions into linear expression in MiniZinc. For example let be the following simple MiniZinc code ...
61 views

### Which method MiniZinc uses to decrease terms of degree > 2 to quadratic terms?

I would like to know which methods/algorithms MiniZinc uses to decrease terms of degree > 2 to quadratic terms. For example in the following code ...
71 views

### A variable being a set...?

I am currently doing a coursera course on optimization. They are using minizinc and they modeled a problem where the decision is a choice of things --> a set. We all know this is a knapsack and it ...
189 views

### Adding a variable makes the model unsatisfiable in MiniZinc

I have the following model. ...
363 views

### VRPTW implementation

Does anybody have an example of the vehicle routing problem with time windows (VRPTW), implemented on Python with CPLEX library, AMPL, or MiniZinc? So far I've looked into ...
586 views

### Which MiniZinc-compatible solvers are best suited for floating decision variables and non-linear constraints?

We are working on a production scheduling problem that has both discrete ("how much to produce from good x and where") and continuous elements ("keep the workload of a production site below 0.7"), ...