Hackerrank array input method

Hello everyone.
Can u plz ecplain or post a link where I can understand the method used by Hackerrank to input an integer array in one line all together
What method?

I would have guessed that any valid code which actually does what it says it does would actually be acceptable to hackerrank.

Perhaps you should post your broken attempt and then we can tell you why it's wrong and help you fix it.
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