BOJ Notification: https://www.acmicpc.net/board/view/165799

Don't know why the owner of BOJ decided to terminate his own service. He is not revealing the reason for now. I don't think Baekjoon has financial problem to operate the website — I am sure he can easily gather and get invested from domestic investors if he wants, so my guess is that somehow he became demotivated.

Anyway, the BOJ will terminate tomorrow. The ranking page already got removed.

I think it has at least 20k problems to solve, including from D3A level to D1E level problems — so this is a sad news for Korean OI-style competition participants. Not sure if he has a plan to share problem description and I/O data for other people to build Korean OJ in future.

Although I am not doing CP anymore, just wanted to share this news.