• Round 2 ends today

    Dear competitors,

    Today is the last day of the round two!

    All solutions must be submitted before midnight! Hurry up!

  • Round 2 start

    Bubble Cup 9 Round 2 has started!

    Good luck to all competitors!

  • Round 1 Results

    Bubble Cup 9 Round 1 has ended and the results of the round are now final.

    Congratulations to all the competitors!

    Stay tuned for Round 2!

  • Round 1: Problem change

    Dear competitors,

    Problem "Cooperation in geometry !" has been removed from the Round 1 problemset due to issues with test data.

    It has been replaced with a new problem - "Missing Side".

    We … more

  • Bubble Cup 9: Round I starts!

    Dear BubbleCup competitors,

    Round I starts!

    Take the challenge and solve problems!

    If you are interested in the competition, but didn't register yet, you can do that until the end of Round I! … more

  • Bubble Cup 9: Round 0

    Dear Bubble Cup competitors,

    Start of the round 1 is getting closer!

    Round 0 is now active. Scores from this round are not counted in the overall results.

    Please use it to get familiar with the … more

  • Bubble Cup 9: Registration starts soon!

    Dear all,

    The registration process for Bubble Cup 9 starts on 11th of March 2016!

    Get ready!

    This year we are going to challenge the future!

    Best regards,

    BubbleCup Crew

  • Bubble Cup 8 Booklet

    Dear competitors (and non-competitors),

    We are happy to inform you that we finished this year’s Bubble Cup Problem Set Booklet.

    You can download it here Booklet2015.pdf

    Best regards, … more

  • Bubble Cup 8 Results

    Dear Bubble Cup competitors,

    Thank you for participating in Bubble Cup 8. We congratulate you all and hope to see you next year.


    First place: 3/4 IOI Polish Team (Poland)

    Second place: … more