This contest will not be rated.

There are 2 problems in this contest.

• Partial scoring is enabled for some or all of these problems.

• The pretest system will not be used for this contest.

• There is no submission limit for any of these problems.

The contest format is IOI（2016 年前賽制）.

• 採用各個題目取得最高分數的提交。

• Ties will be broken by the sum of the last score altering submission time on problems with a non-zero score.

The scoreboard will be visible for the duration of the contest.

An access code is required to join the contest.