Hello Codeforces!

As you may know, the official site of BubbleCup has been updated traditionally.

Registration for Bubble Cup 11 opens on March 26th alongside test round — Round 0!

While you wait for Bubble Cup to start please check out our new Rules page for more info about this year's competition format changes.

Official link: http://www.bubblecup.org/

Hope to see you and wish you good luck!