@atul The example that u have taken, is it correct ? I see that in the search string 'abcdtrwdcba' acc to u the even length palindrome is abcddcba..
On Dec 29, 9:23 am, atul anand <atul.87fri...@gmail.com> wrote: > @Lucifier : > > this is wat i was trying to say :- > > string = abcdtrwdcba > > find even length substring and hash them , moving from left to right. > > hash(abcdtrwdcba) // corner case > hash(ab) > hash(abcd) > hash(abcdtr) > . > . > . > hash(dcba). > > after hashing is done. > > again hash moving from right to left. > hash(abcd) ---> hash alreday present so ...even length palindrome exists. > you need to take care of cases like for ab ->hash is present , but is part > of bigger substring (abcd) when moving from right to left. so keep track of > the index. > here how to keep track:- > > when you find hash of (ab) index=i; > when you find second even palindrome hash(abcd). > > if length("abcd") > length("ab"); > { > temp_index=current_index + lenght("ab"); > if(temp_index== index) > { > // we know ab is the part of bigger string abcd.update > the new even palindrome found. > } > > > > > > > > } -- 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.