How do i create two-dimensional array variable using addvars() in C++

Answered

Hongdong Xiong

September 11, 2021 02:42

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hi, I want to create a 47*96 two-dimensional array of multiple decision variables in C++ following the documentation, but got errors. How to create it correctly

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• Official comment

  

  Simranjit Kaur

  • Gurobi Staff

  June 23, 2025 02:48 Edited

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum. Or why not try our AI Gurobot?.
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  Jaromił Najman

  • Gurobi Staff

  September 13, 2021 16:06

  Hi,

  The C++ addVars function does not create a multidimensional array but a one dimensional array. In order to construct a 2 dimensional array of GRBVar objects, you can use

  GRBVar* v[47];
  for (int i = 0; i<47; i++)
  {
    v[i] = model.addVars(96);
  }

  You can then access the variables via \(\texttt{v[i][j]}\).

  Best regards,
  Jaromił

   

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  Hongdong Xiong

  September 14, 2021 12:24

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  Thanks it help me a lot!

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