chenjb's blog

By chenjb, history, 3 months ago, In English,

Hello! I'm happy to announce XX Open Cup: Grand Prix of Nanjing, which will be held on May 3rd, 2020.

This contest is mainly prepared by gisp_zjz and me, which has already been used in Moscow Pre-Finals Workshop 2020 Day 5 on April 29th, 2020.

As you can see on the top of the statement, this contest is also been called Legilimens+Coffee Chicken Contest. Team Coffee Chicken from Nanjing University will participate in World Finals 2020 and we wish them best luck in Moscow. Team Legilimens is from Zhejiang University, which is my team in the past 3 years. Although we didn't get advanced to World Finals 2020 and this is the end of our journey, we have experienced a lot of happy and unforgettable moments. Therefore, please allow me to express my gratefulness to my teammates Subconscious and oipotato. And may the friendship between Nanjing University and Zhejiang University last forever.

Authors of this contest come from Competitive Programming Team members from both Zhejiang University and Nanjing University, including gisp_zjz, Acesrc, zyb, Roundgod, Calabash_boy, sy_chen, chenjb, Subconscious, oipotato, Heltion, etc.

Testers: mayaohua2003, gtrhetr, xiaowuc1. Thank you!

Contest link: http://official.contest.yandex.ru/opencupXX/contest/18242/enter (Only visible for users with OpenCup login)

I will post the editorial after the contest. We are looking forward to your participation!

UPD: Now it is over. Please feel free to discuss solutions and this is the Editorial Sketch.

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By chenjb, history, 5 months ago, In English,

Gp of Zhejiang is over...Let's discuss solutions. How to solve C?

Is there an editorial? MiFaFaOvO

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By chenjb, history, 19 months ago, In English,

ZOJ Monthly, January 2019 will be held on Saturday (time). The main problem setters are chenjb and Claris.

Contest Link

It will last for 5 hours and have 8-9 problems in total. Since there is no rating system(Thanks to MudCoal, we may have one in the future) in our Zhejiang University Online Judge, it will be unrated. And I guess the difficulty is as a normal Educational Contest in Codeforces.

All problem ideas come from members of Zhejiang University Programming Contest Setting Team and most of them have already been used in the Internal Member-Selection Contests in ZJU held in July, 2018. They have been carefully selected, modified, tested by our problem setters and rearranged into this Monthly contest eventually.

Special thanks to Claris for helping me testing problems, modifying the content and some other matters. He even gives better and stronger solutions to some problems, which make them more interesting and challenging. I am very grateful.

Also thank Tsreaper and shb123 for the help and zimpha, lyk248289469, Heltion, HbFS-, johann_wang, Onlynagesha, zhhhplus, etc for their ideas.

There have been less ZOJ Monthly Contests these years. Therefore, we cherish every chance and wish to make every Monthly contest as good as possible. I really hope all of you can enjoy this contest. Can't wait to see you guys on Saturday!

UPD: The contest will begin in less than 9 hours and there will be 9 problems in total. If you have any question about the contest, please make comments under this blog. And please not to discuss about the solution until the contest ends.

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