一、春令营网站

https://contests.ioi-jp.org/joi-sp-2020/index-en.html

二、竞赛时间

DAY1：3月20日01:00-06:00 UTC/GMT（北京时间09:00-14:00）

DAY2：3月21日01:00-06:00 UTC/GMT（北京时间09:00-14:00）

DAY3：3月22日01:00-06:00 UTC/GMT（北京时间09:00-14:00）

DAY4：3月23日01:00-06:00 UTC/GMT（北京时间09:00-14:00）

三、注意事项

1.每场竞赛时长为5小时，含3-4道题目；

2.题面仅提供日语和英语两个版本；

3.与国际信息学奥林匹克（IOI）类似，竞赛可能涉及非常规题目，如提交答案型题目（output-only tasks），优化型题目（optimization tasks，选手得分依赖于其输出结果与最优解的比较），反馈型题目（reactive tasks，部分测试数据可能依赖于选手此前的输出结果）和交互型题目（communication tasks，选手程序通过若干次查询而最终给出解答）；

4.竞赛网址和注册表格将于在线竞赛前30分钟左右公布；

5.更多竞赛详情请参考春令营网站。

NOI竞赛办公室

2020年3月17日

通知原文：

Japanese Olympiad in Informatics Spring Camp Online Contest 2020 will be held from March 20 to March 23, 2020.

Online Contest site:

https://contests.ioi-jp.org/joi-sp-2020/index-en.html

Day1 : March 20 (01:00 - 06:00 UTC/GMT)

Day2 : March 21 (01:00 - 06:00 UTC/GMT)

Day3 : March 22 (01:00 - 06:00 UTC/GMT)

Day4 : March 23 (01:00 - 06:00 UTC/GMT)

The contest duration is 5 hours and there are 3 or 4 problems in each day.

Problem statements will be provided both in Japanese and English.

There might be unusual tasks such as output-only tasks,optimization tasks, reactive tasks and communication tasks,just like International Olympiad in Informatics (IOI).

The contest site and registration form will be announced about 30 minutes before the online contest.

Details are available in the contest information page.

We welcome all participants. Good luck and have fun!

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Executive director of the Japanese Committee for the IOI

Seiichi Tani

Chairperson of the Scientific Committee of JCIOI

Tetsushi Ito