**In short:** If a problem has 4 sample test cases, and **code fails at test 4** then **wrong submission** is counted, but if it **fails at test 1**, this code is **not** counted as wrong submission.↵
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_We often over-read the sample output and submit the code, which costs us points._↵
I suggest, if any of the sample test cases fail, wrong submission shouldn't be counted.
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_We often over-read the sample output and submit the code, which costs us points._↵
I suggest, if any of the sample test cases fail, wrong submission shouldn't be counted.