We will hold UOJ Long Round #4 contest!

The contest will run for 60 hours, You will be given 6 problems.

Overall, the difficulty would be like previous ULR contests.

This contest was prepared by the JRKSJ Problemsetting Team, and also serves as a celebration of JRKSJ Round 10. (Postscript: We also invite you to explore the previous JRKSJ contest problems.)

• Contest link: https://uoj.ac/contest/108
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20260705T1000&p1=33
• Writers: crsfafa, Daniel_lele, Zunpet
• Testers: le0n, Crysfly, Tony2_CF
• Duration: 60 hours
• Difficulty: CF Div.1+
• The point values: 100-100-100-100-100-100

The contest will follow the IOI rules: Each problem can be submitted up to 128 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, but the rating change will only be 1/120 of a normal contest. So feel free to join just for fun!

We are looking forward to your participation!

UPD. Congratulation to the winners!

1. jiangbowen
2. strapple
3. Max_s_xaM
4. flying
5. Milmon