I'm back with a new contest, a new color,
and a new batch of xor problems.
Codeforces round #525, rated for the second division, is taking place on Dec/04/2018 17:35 (Moscow time). As usual, first division participants can take part out of competition.
I'm the problemsetter of the round. I'd like to thank 300iq for the great effort coordinating the round, isaf27, cdkrot, Nebuchadnezzar, and vintage_Vlad_Makeev for testing the round, scanhex for translating the statements to Russian, mahmoudbadawy for giving his opinions about the problems, and MikeMirzayanov for the great codeforces and polygon platforms.
Like my previous round, you'll be given 6 problems and 2 hours to solve them.
After the contest, I'll be on the community Discord server to discuss the problems.
UPD: the scoring distribution will be 500-1000-1500-2000-2500-3000.
UPD: something wrong happened and the editorial was deleted. I'll post it as soon as possible :(
UPD: the editorial has been re-written.
Good luck & Have fun!
UPD: congratulations to the winners!