How is tie breaker problem judged after the end of the contest.
Are all correct answers rejudged or only the best one or only the last one…?
According to http://blog.codechef.com/2013/10/03/challenge-problem-scoring-changes/ all submissions should get rejudged. (At least, that is what I implied!)
Look for the replies to this comment: http://blog.codechef.com/2013/10/03/challenge-problem-scoring-changes/#comment-1068878953