ALESSANDRA VIEIRA

I am modelling in GUROBI  C++. I generate a model with several decision variables and constraints model. Next, I copy the orignal model in new_model and add  new constraint  refering the variables ...

I am using Gurobi 9.0, with C++. I am trying to put an array element, that is created for a C++ function ( use random) as a UPPER bound of a GRB Var array, as follows: for ( t = 0; t < z; t++) {  ...

Hi Folks, I need some help with my code. I am using Gurobi C++. I did a QuadExpr sum += sum of GRBVar variables.  How is possible that this sum gives any value different than zero if my variables a...

I'm trying to use a callback to add a cut that equals a Gurobi expression, which sums a variable, at different times. If I keep the expression in the list of callback arguments, I get an error mess...

Dear Folks, I am using Gurobi with C++ in VS. I need to choose a value for one Gurobi expression between zero and another Gurobi expression that can have a negative value as result, the latter cont...

Hi Folks, I am using Gurobi C++ using Visual Studio and the model.write ("filename.rlp") in .cpp file. I am trying to read it in another .cpp file. I wrote in .rlp, as recommended by the Gurobi Opt...

Hi Folks, I have two questions about Gurobi parameters.. I am using Gurobi C++ to solve a MIP_problem that I need to add CNTR from a previous optimization, each optimization has its own difficultie...