About compute_routes ?

[K Sun <ksun@essex.ac.uk>]

Hello,  there,
     I am sorry that I still have a question about 
RouteLogic::compute_routes() in route.cc.
     What I am confused is why the loops start from "k=1" and "v=1".
As I think, it should start from "k=0" (for example, for (k=0; k<n; 
==k)...) because the node id starts from 0. 
     Could you please give me any instruction?
     
     Best Regards,
             Sun Kai