Problem with December Challenge test data ?

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Hi,
Is anyone aware whether the test data format for December Challenge been changed? I am submitting code(s) in Java and they give runtime error (NZEC) on the judge page. In one of the questions, I changed the input mechanism from BufferedReader to custom InputReader (which I copied from one of the submissions from CodeChef itself) and the code was accepted.

Am I the only one facing this problem? And if there really is a problem then why hasn’t it been rectified yet? It is frustrating to be hung up on a question with no useful information as to what is wrong with the code. Admins kindly respond.

PS: I do not intend to reveal any information about the ongoing contest through this question. If you still feel its misconduct, please delete the question.

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I’m typically using BufferedReader (with StringTokenizer) without the problem, in December 2013 Long contest I used it for Magic Pairs and Rectangular Queries, I’d like to solve two more problems today, if so I’ll update my answer and let you know…

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Sorry, now I realized, you were talking about Challenge problem…

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have u closed the objects of BufferedReader, InputReader (or any other class u might be using) ?? I had also got NZEC error in java a few months ago, when i forgot to close the objects of these classes

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