Truc Do

Thank you very much.

Here is my code with "Model is infeasible". If you can, please help me. import mathimport randomimport gurobipy as gp#from gurobipy import *from gurobipy import GRBmd1=gp.Model("VRP") nbN=10nbK=4nb...

At first, I don't know how to write. While I am waiting for the help, I try to write. Thank you very much for your help. Best regards, Trúc

md1.addConstrs(muykiw[k,l,w] +  gp.quicksum(epsilonijkw[i,l,k,w] for i in N) == nuykiw[k,l,w] + gp.quicksum(epsilonijkw[l,j,k,w] for j in N) for l in N for k in K for w in W )md1.addConstrs(nuykiw[...

Thank you very much Dr.Elisabeth. For please help how to write the constraint. Tks.  

# -*- coding: utf-8 -*-"""Created on Thu May 25 09:04:38 2023 @author: dvtruc"""import mathimport randomimport gurobipy as gpfrom gurobipy import *from gurobipy import GRBmd1=Model("VRP") nbN=10nbK...

Yes Mario,