Xref: utzoo comp.theory:1687 sci.math:16002 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!zaphod.mps.ohio-state.edu!mips!cs.uoregon.edu!ogicse!uidaho!ted.cs.uidaho.edu!foster From: foster@ted.cs.uidaho.edu Newsgroups: comp.theory,sci.math Subject: Re: Disjoint Paths Problem (A variation) Message-ID: <1991Mar22.204636.15827@groucho> Date: 22 Mar 91 20:46:36 GMT References: <1991Mar20.170612.13200@garfield.cs.mun.ca> Sender: @groucho Organization: University of Idaho Lines: 9 Nntp-Posting-Host: ted.cs.uidaho.edu In article <1991Mar20.170612.13200@garfield.cs.mun.ca> grant@garfield.cs.mun.ca (Grant Burton) writes: > >Questions: >2) DCP is known to be NP-complete, and it is a subproblem of IDCP, > therefore IDCP must also NP-complete, do you agree ? No. 2-sat is a subproblem of 3-sat, yet is not np-complete. James