Hello, everyone!

Japanese Olympiad in Informatics (JOI) Spring Training 2025 (Contest URL) will be held from March 21st to 24th. There are 4 days in the contest.

• Day 1: March 21, 02:00 GMT — March 21, 24:00 GMT
• Day 2: March 22, 02:00 GMT — March 22, 24:00 GMT
• Day 3: March 23, 02:00 GMT — March 23, 24:00 GMT
• Day 4: March 24, 02:00 GMT — March 24, 24:00 GMT

The contest information is as follows. Details are available in contest page.

• Number of problems for each contest: 3-4 problems
• Style: IOI-Style (There may be some partial scores)
• Problem Statement: Japanese & English
• There may be some unusual task (e.g. output-only task, communication task) like IOI

The registration page and live scoreboard will be announced 10 minutes before the contest.

We welcome all participants. Good luck and have fun!