SUMTRIAN Submission doubt

I am not sure how solutions which require more than the specified time limit (which is 3 sec) got accepted

http://www.codechef.com/status/SUMTRIAN?language=4&status=15&handle=&sort_by=Time&sorting_order=desc

It’s discussed here several times - time limit (in problem statement) is for one test file, while shown time is sum for all test files…

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