can any one tell how to hack question in codeforces contest
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After solving a problem (pretests passed), go to the dashboard and you will see a lock. You can click there to lock your problem(locking a problem means, you can’t submit that problem anymore, so be sure your code is absolutely correct before locking). After locking, go to your room and double click to see anyone’s solution. If you think, there’s a bug in that code, you can click “Hack” and then write a test case where that code will fail. You’ll get +100 for every successful hack and -50 for every unsuccessful one.
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can you tell how to hack question in codechef contest?
can you tell how to get answers before the submission of codechef contest?