Hello everyone.

COCI 2016/2017 CONTEST #4 already in a process.

I suggest to discuss the problems here, after the contest.

Sorry for my bad English. And good luck on the contest. :)

The contest is finished. Results here.

Hello dear readers. I try to solwe a problem Horses ( ENG, RUS ) ( from IOI 2015 day 2 ).

I read the analysis from the official site , but not much in it figured out.

I would be very grateful if you will help to solve this problem . Please help to solve this problem.

Thank you very much.

Hello dear readers. Tell please how to solve a problem Scales ( ENG RUS ). ( from IOI 2015 day 1 ).

Thank you very much.

Hello dear readers. Tell please how to solve a problem boxes ( ENG RUS ). ( from IOI 2015 day 1 ).

And also can you tell where it is possible to find analyses of problems of last IOI ( desirable in Russian )?

Thank you very much.