Questions have begun arising on this site from an active contest. It is the CodeChef November Challenge, which ends at 15:00 Indian Standard Time on 12 November 2018. There are two divisions, depending on the ranking of the user.
Division 1 Questions: https://www.codechef.com/NOV18A?order=desc&sortBy=successful_submissions
Division 2 Questions: https://www.codechef.com/NOV18B?order=desc&sortBy=successful_submissions
I am posting this so that you are aware of this contest and can notify the moderators should one or more of these questions arise on this site.
For instance, here are two such questions: