Comments
+2

Or instead of n >= p * p0 check n / p >= p0.
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Rectangles not ovelapping.
On Mahdi_Jfri → Codeforces Round #446, 8 years ago
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How to solve div2 C?
+1

Oh, you mean COMPARE for source codes. Sorry for confusion.
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I think it might not use standard COMPARE function, because there's many correct solutions. Thanks for the info that spaces are not allowed, I will remember in the future.
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I just realized I'm writing spaces at the end of every line (my helper function does that). It's implied, but not really specified, that whitespaces are ignored in the output, right? So, maybe, it's partially my fault.