Rank

Your rank in the contest depends on the sum of scores for the problems you solve (column Score on the standings page). IOI scoring rules are used to determine the score for each problem (see below).

IOI scoring

The score you get for a problem can be greater than the score of any individual submission. As an example, let's look at a problem with two testcases, T1 and T2, worth 40 and 60 points respectively. Let's say a contestant makes the following submissions:

• Submission 1 solves T1 and is rewarded 40 points.
• Submission 2 solves T2 and is rewarded 60 points.

Since both T1 and T2 were solved, the contestant gets a total of 100 points for that problem.

Reading the standings

On the standings page there are circles with different colors: dark green, somewhere between fully green and fully red, or grey.

• Dark green means that you have solved the problem with maximum score, and you were the first to do so.
• Fully green means that you have solved the problem with maximum score.
• Fully red means that you have submitted on the problem but all your submissions have been rejected with no score.
• Somewhere between green and red means that you have achieved some score. The closer to green, the higher the score.
• Gray means that you have a submission to that problem, but the result (accept or reject) is pending.
• No circle means that you have not submitted on that problem.

The upper number to the right of the circle is the score achieved.

The lower number to the right of the circle is the number of submissions.