The summer contest series returns?

As with all previous summer contests, this one will be unrated.

Unlike with the previous summer contests, Kirito and rpeng have a special prize for the lowest scorer that satisfies certain criteria.

The score distribution will be: 100-100-100-100-100.

• Contest duration: 4 hours.
• Number of problems: 5, full feedback.
• This contest will be unrated.
• Scoreboard will be hidden.
• Contest will run on pre-2016 IOI format. This means that your score is the sum of your highest scoring submission to each problem. No ties will be broken.
• Number of submissions allowed per problem: 50.