Abstract
We consider a special case of the ordinary NP-hard two-machine flow shop problem with the objective of determining simultaneously a minimal common due date and the minimal number of tardy jobs. In Panwalkar and Koulamas (2012) [5], the authors presented quadratic algorithm for the problem when each job has its smaller processing time on the first machine. In this note, we improve the running time of the algorithm to O(nlogn) by efficient implementation using recently introduced modified binary tree data structure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have