A Modified Priority-Based Encoding for Design of a Closed-Loop Supply Chain Network Using a Discrete League Championship Algorithm

Algorithm 2

The decoding algorithm of representation for multilevel CLSC network.

Requires: problem parameters

Ensure: Calculating the objective function in the multi-level CLSC

(1)

(2)Calculate    by Algorithm 1

(3)If    then  

(4)Calculate    by Algorithm 1

(5)If    then  

(6)Calculate    by Algorithm 1

(7)If    then  

(8)Calculate    by Algorithm 1

(9)Calculate the total cost:

(10)

(11)