We have relocated our server from Tencent Cloud in Canton to RackNerd in Los Angeles.

The judgers are running on Ubuntu 24.04 with GCC 13, Java 21, and Python 3.12.

Verwandlung Online Judge has undergone several updates, including a shift to Spring 6.0 and Tomcat 10. Additionally, the Java compiler has been upgraded to version 17.0, while the Python interpreter has been updated to version 3.10.

We have migrated our servers from Vultr to Tencent Cloud.

We downgraded the Java compiler due to the OOM issue in Java 12. Now, the version of Java compiler is 8. All Java submissions are rejudged. Sorry for the inconvenience.

We're going to change the OS of judgers to Arch Linux at 00:00:00 Aug. 26, 2018 (UTC Time). The operation may last about 2 hours. After installation, the version of GCC compiler will be updated to 8.2.0. The version of Python will be updated to 3.7.0. Hope you will enjoy Verwandlung Online Judge.

We have migrated our servers from Google Cloud Platform to Vultr. The gcc compiler was upgraded to 7.3.0.

We have migrated our servers from Aliyun to Google Cloud Platform. The gcc compiler was upgraded to 6.3.0.

The g++ compiler may be misconfigured a few days ago, and led to `Compile Error` for C++ programs. We fixed the configuration for the g++ compiler just now, and re-compile all C++ source code. We apologised for any inconvenience caused.