using two stacks or using a queue and a stack ... these are obvious solutions ..
Just want to know if there exists an iterative way without extra space !!! I should've mentioned these details earlier .. sorry for that !! ~raju On Tue, Sep 27, 2011 at 10:09 PM, geeks <ankurshukla.h...@gmail.com> wrote: > just use the two stacks here and do the level order traversal in spiral > order and keep down prev pointer each time and just maintain the doubly > linked i think it is pretty gud hint :) > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/algogeeks/-/iHbjfHkgHl4J. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > 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 algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
