you can't implement in O(log n). It can be done in O(log n) in case of Ranked BS Tree.
-- Amitesh On Sun, Jan 20, 2013 at 6:23 PM, Praveen <praveensonare...@gmail.com> wrote: > If for all the nodes in BST we also store the size of subtree, then it is > possible to find nth smallest element in O(logN). > > On Sun, Jan 20, 2013 at 4:57 PM, Guneesh Paul Singh > <gunees...@gmail.com>wrote: > >> not possible unless u use augmented bst..which itself takes o(n) to built >> >> -- >> >> >> > > > > -- > Praveen Sonare > +91-7838908235 > > > > -- > > > --