Question: = The fixed charge network design problem. We are given a directed graph G = (N, A) and a demand or supply b; for each

= The fixed charge network design problem. We are

= The fixed charge network design problem. We are given a directed graph G = (N, A) and a demand or supply b; for each i E N, such that Lien bi = 0. There are two types of costs: transportation costs Cij of shipping one unit from node i to node j, and building costs dij of establishing a link (i,j) between nodes i and j of capacity Uij. We would like to build such a network in order to minimize the total building and transportation costs, so that all demand is met. Formulate the problem as an integer programming problem. = The fixed charge network design problem. We are given a directed graph G = (N, A) and a demand or supply b; for each i E N, such that Lien bi = 0. There are two types of costs: transportation costs Cij of shipping one unit from node i to node j, and building costs dij of establishing a link (i,j) between nodes i and j of capacity Uij. We would like to build such a network in order to minimize the total building and transportation costs, so that all demand is met. Formulate the problem as an integer programming

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