Facebook Puzzle (breathalyzer)

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Facebook Puzzle Description:
http://www.facebook.com/careers/puzzles.php?puzzle_id=17


Guides:


Readings:
http://en.wikipedia.org/wiki/Levenshtein_distance
http://www.norvig.com/spell-correct.html
http://www.cs.princeton.edu/introcs/96optimization/LCS.java.html
http://www.ics.uci.edu/~eppstein/161/960229.html
http://sys-view.blogspot.com/2009/12/breathalyzer-facebook-puzzle.html

Tips:
Words to note:
1. kaerfoolly
2. brefalyzah
3. composishun

Testcases:
http://www.facebook.com/note.php?note_id=95935379414#!/topic.php?uid=15325934266&topic=8941

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