UPD: We have changed contest duration from 3 hours to 3.5 hours.

We will hold UOJ Easy Round #13 contest! You will be given 4 problems to be solved in 3.5 hours.

• Contest link: https://uoj.ac/contest/106
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20260404T1900&p1=33&ah=3
• Writers: Comentropy, pp_orange, jiaosiyuan, Gellyfish
• Testers: Crysfly, hos.lyric
• Duration: 3.5 hours
• Difficulty: CF Div 1.5/ARC++
• The point values: 100-100-100-100

The contest will follow the IOI rules: Each problem can be submitted up to 50 times, and scores can be viewed in real-time. All the problems will have subtasks, the final score will be based on the highest-scoring submission.

You can see the scoreboard during the contest.

The contest is rated for everyone, you will be count as rated only if you opened at least one problem.

We are looking forward to your participation!