Matcom Online Grader
Faculty of Mathematics and Computer Science of University of Havana

Allowed languages are C , C++ , C++11 , C++17 , C# , Java , Python2 , Python3 and Kotlin . This contest will be rated . No cheating is allowed, users are not allowed to share their solutions or talk with others. Clarifications should be written in English and will be answered in English . If the answer to the question is contained in the text or can't be answered because will mean advantage over other users, the answer will be " No Comments ".

UPD: A preliminary version of the editorial is ready (it will be updated soon) .