This repository contains code to solve a two layer facility location problem, which was the subject of the 2022 KIRO challenge, a French OR challenge.
The subject of the problem can be found here.
The problem was solved using a Mixed Integer Linear Programming formulation which can be found here.
We then used JuMP to modelize the problem and CPLEX to solve it to optimum (thanks to Julia CPLEX interface).
Here is a visualization of the optimum distribution network for the large instance :
All solutions are provided in this folder