Hello Everyone!↵
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Japanese Olympiad in Informatics Spring Camp 2021 will be held from Mar. 20 to Mar. 23.↵
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There will be four online mirror contests during the camp.↵
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- day1 : [Mar. 20 (, 02:00 — 12:3Mar. 21, 00:00 GMT)](https://www.timeanddate.com/worldclock/fixedtime.html?msg=Japanese+Olympiad+in+Informatics+%28JOI%29+Spring+Camp+2021+Day1&iso=20210320T02&p1=1440&ah=10&am=3022) ↵
- day2 : [Mar. 21 (, 02:00 — 12:3Mar. 22, 00:00 GMT)](https://www.timeanddate.com/worldclock/fixedtime.html?msg=Japanese+Olympiad+in+Informatics+%28JOI%29+Spring+Camp+2021+Day2&iso=20210321T02&p1=1440&ah=10&am=3022)↵
- day3 : [Mar. 22 (, 02:00 — 12:3Mar. 23, 00:00 GMT)](https://www.timeanddate.com/worldclock/fixedtime.html?msg=Japanese+Olympiad+in+Informatics+%28JOI%29+Spring+Camp+2021+Day3&iso=20210322T02&p1=1440&ah=10&am=3022)↵
- day4 : [Mar. 23 (, 02:00 — 12:3Mar. 24, 00:00 GMT)](https://www.timeanddate.com/worldclock/fixedtime.html?msg=Japanese+Olympiad+in+Informatics+%28JOI%29+Spring+Camp+2021+Day4&iso=20210323T02&p1=1440&ah=10&am=3022)↵
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The duration of the contest is 5 hours. You can choose start time from specified range freely.↵
Please note that if you start competing after07:319:00 GMT, competition ends at 12:300:00 GMT and duration is less than 5 hours.↵
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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).↵
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The contest site and registration form will be announced about 30 minutes before the contest.↵
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Details are available in [the contest information page](https://contests.ioi-jp.org/joi-sp-2021/index-en.html).↵
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We welcome all participants. Good luck and have fun!↵
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**UPD** : We made the time windows longer.
↵
Japanese Olympiad in Informatics Spring Camp 2021 will be held from Mar. 20 to Mar. 23.↵
↵
There will be four online mirror contests during the camp.↵
↵
- day1 : [Mar. 20
- day2 : [Mar. 21
- day3 : [Mar. 22
- day4 : [Mar. 23
↵
The duration of the contest is 5 hours. You can choose start time from specified range freely.↵
Please note that if you start competing after
↵
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 contest.↵
↵
Details are available in [the contest information page](https://contests.ioi-jp.org/joi-sp-2021/index-en.html).↵
↵
We welcome all participants. Good luck and have fun!↵
↵
**UPD** : We made the time windows longer.
