International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 81 - Number 7 |
Year of Publication: 2013 |
Authors: Pawan Kumar Patel, Rohit Kumar, Nikita Gulati |
10.5120/14023-1676 |
Pawan Kumar Patel, Rohit Kumar, Nikita Gulati . Constrained Routing Problem. International Journal of Computer Applications. 81, 7 ( November 2013), 15-17. DOI=10.5120/14023-1676
In this paper, we have worked on a problem in the domain of graph theory and geometry . Objective of our problem is to find out the shortest path with forbidden pairs in a graphs. Given a graph G=(V, E) and set of pairs P={ai, bi|ai ? V? bi ? V}, we have to find out the shortest path between two given vertices s and t, s. t. ai bi both do not occur on the path for any i. We reduce SAT to this problem and thus claim that this problem is NP-hard.