Help with problem "Old Christmas Lights"

Правка en1, от maximaxi, 2016-01-16 22:45:40

Hello everyone, could you provide some ideas for this problem? I think it might use sparse table.

Thanks!

Теги help, problem, sparse table

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en1 Английский maximaxi 2016-01-16 22:45:40 186 Initial revision (published)