The 19th Japanese Olympiad in Informatics Spring Camp Online Contest

Competition time of Day2, 3 and 4 was changed. Due to technical issues, those who participated in Day 1 Round 2 should register again. Also, the results from Day 1 Round 2 are not included in the current ranking.

Sorry for the inconvenience.

Overview

Japanese version is available here.

The 19th Japanese Olympiad in Informatics Spring Camp Online Contest is the online contest of The 19th Japanese Olympiad in Informatics Spring Camp. The contest is open to everybody. Everybody is welcome to attend JOI Open Contest!

The duration of the contest is 5 hours. You can choose start time from specified range freely.**

Registration will be open before each contest. A link to the registration page will appear on this page about 30 minutes before the beginning of the contest. Contestants can register on the contest site by themselves from the right before the beginning of each contest until the end of it.

No prizes will be given to the contestants. We will not publish the source code submitted to this contest without permission from the participants.

Contest Information

Name: The 19th Japanese Olympiad in Informatics Spring Camp Online Contest
Contest System: CMS (customized version)
Contest duration: 5 hours per day
The number of tasks: 3-4 tasks per day
Language: English, Japanese
Date: March 20, 2020 to March 23, 2020
Time (Round1): 10:00-15:00 +0900 (JST); 01:00-06:00 (UTC/GMT); It is 60 minutes behind JOI 2020 spring camp onsite contest.
Time (Round2): 16:30-21:30 +0900 (JST) (changed); 07:30-12:30 (UTC/GMT) (changed); (Tasks for Round 1 and Round 2 are the same.)
Time: 10:00-21:30 +0900 (JST); 01:00-12:30 (UTC/GMT); You can choose start time from above freely.; Duration is 5 hours.; However, if you start competing after 16:30, competition ends at 21:30 and duration is less than 5 hours.

Rule

Rules that are same as JOI 2020 Spring Camp Rule:

All submissions will receive full feedback in principle.
Contestants may submit at most once per task per minute.
Each submitted source program must be written in C++ (C++14). Allowed extensions for source codes are .cpp
Contestants may submit at most 50 times per task.
Question form is available on a contest server, but no replies are guaranteed.

Rules that are not same as JOI 2020 Rule:

Evaluating environment is not the same as JOI 2020 onsite contest.

Contest Site

The contests are over.

Ranking

Ranking (Day1 Round2)

Tasks and Test Data

The tasks and test data are available in JOI 2019/2020 Spring Camp Tasks.