longest path can be solved in acyclic directed graphs. so check your case if it is not that.
2010/1/15 Vivek S <[email protected]> > @chitta koushik > No, That might lead to negative edge cycles! > > 2010/1/15 chitta koushik <[email protected]> > >> How abt negating values and using same single source shortest path algo ? >> >> 2010/1/15 saltycookie <[email protected]> >> >>> longest path is NP-hard >>> >>> 2010/1/11 Johan <[email protected]> >>> >>>> Ok, so I know that Dijkstra can be used to solve the single-source >>>> shortest path problem quite efficiently. I however need to find the >>>> single source longest path through a graph. Can Dijkstra be used for >>>> this if I transform the edge lengths so that the longest edge is now >>>> the shortest etc etc. Does anybody have any references to work done >>>> which is similar to the this longest path problem? >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Algorithm Geeks" group. >>>> To post to this group, send email to [email protected]. >>>> To unsubscribe from this group, send email to >>>> [email protected]<algogeeks%[email protected]> >>>> . >>>> For more options, visit this group at >>>> http://groups.google.com/group/algogeeks?hl=en. >>>> >>>> >>>> >>>> >>> >>> >>> -- >>> 此致 >>> 敬礼！ >>> >>> 林夏祥 >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Algorithm Geeks" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]<algogeeks%[email protected]> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<algogeeks%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> >> > > > -- > "Reduce, Reuse and Recycle" > Regards, > Vivek.S > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<algogeeks%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > >--
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