Arena 1y Anniversary

Arena Celebrates its 1 year anniversary with a rated contest !

You will be given 4 to 5 problems in IOI style and 2.5 hours to solve them, you will need to read from stdin and output to stdout.

Problems will have two or more subtasks, solving subtasks gives you partial score.

Your score will be the sum of your scores on each subtask over all submissions.

Ties are broken by summing the submissions times of the most recent total score-changing submissions.

Problems were prepared and tested by aymanrs, aymanemoutei, Nabil, medk and moncef

We wish you a higher rating.


Problem Points AC Rate Users
Omar and Circles 100p 13.1% 12
Contest strategy 100p 6.8% 13
Easy splitting 100p 2.1% 3
Xor Sort 100p 12.2% 2


  • 0
    plqdsu832ws  commented on Dec. 12, 2020, 7:05 p.m.

    botona d join ?

    • 1
      Overrated  commented on Dec. 12, 2020, 7:08 p.m.

      i dont think that the contest started yet

      • 1
        diaatest  commented on Dec. 12, 2020, 7:10 p.m.

        it's available now in the top of the page