find out the subseq which are consecttive concatenate them at each level to get the entire set.
On Tue, Dec 1, 2009 at 12:03 PM, Vinoth Kumar <[email protected]>wrote: > Given an array A which holds a permutation of 1,2,...,n. A sub-block A > [i..j] of an array A > is called a valid block if all the numbers appearing in A[i..j] are > consecutive numbers (may not be in order. > > Given an array A= [ 7 3 4 1 2 6 5 8] > the valid blocks are [3 4], [1,2], [6,5], [3 4 1 2], [3 4 1 2 6 5], [7 > 3 4 1 2 6 5], [7 3 4 1 2 6 5 8] > > Give an O( n log n) algorithm to count the number of valid blocks. > > > -- Vinod > > -- > > 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]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
