given a string tell wether it is valid or not. string is valid if there is no substring which have the same substring following it.
these strings are not valid:- "stringstring","geek123123rt", "abcadabcad","strngstingstrngsting" -- 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.
