Longest Prefix and Suffix.

How to find the Longest Prefix and Suffix of a given string?

Well you are looking for KMP algorithm.I would suggest you to go through following links and if you face any problem feel free to ask

Hope it helps

@rahesdcs

CAn you please elaborate? Is the question like you are given a string S and then a set of prefix and suffixed strings and have to find the longest prefix and suffix in them?

Or does the Q involve finding longest common prefix, as @invoation answered?

Well, in case it is like finding common prefix then innovation already answered.

But in case you need more help, I think this article would help you
String Matching: Longest Suffix Prefix Array in KMP logic

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