I want to enable coach mode in gym, but it seems like there is no available options there, so how do I do it? The rating required should be >=1900 right?
http://mirror.codeforces.com/predownloaded/85/d0/85d0c2e30a41da786051c2238b0fe2497f06c7f2.png
Update: What AshishYadav saids it true, just had my 30th contest being purple, and I managed to become coach!