What is the most efficient way to detect if a string contains a number of consecutive duplicate char

Posted by silent on Stack Overflow See other posts from Stack Overflow or by silent
Published on 2010-04-19T21:59:40Z Indexed on 2010/04/19 22:53 UTC
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c#

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string-manipulation

For example, a user entered "I love this post!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"

the consecutive duplicate exclamation mark "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" should be detected.

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