If there are the request to hold competitive programming contest, an inquiry of the business, please refer as follows from contact information. We give all a response best as possible as we can. But we may not cope depending on contents. To have understood it beforehand; thanking you in advance.

We cannot respond to individual requests to add or upgrade programming languages. We are scheduling to update the judge environment in the near future. We will announce an instruction for requesting in the top page when we decide schedule of updating.

Please refer to this for the contest held request.

Please refer to this for other inquiries.

SNS accounts (We don't guarantee response.)