A Lightoj Problem

Revision en1, by Heisenberg_71, 2020-03-17 09:53:08

http://lightoj.com/volume_showproblem.php?problem=1093

I understood the problem but failed to understand the sample test cases.

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en1 English Heisenberg_71 2020-03-17 09:53:08 147 Initial revision (published)