Hello All, Yesterday during Educational Codeforces Round 107 (Rated for Div. 2) , I received the following Message from a random person asking for trading solutions. In order to block such happenings for others in future, I felt a feature like Messaging should be blocked for users while they are participanting in a live contest needs to be implemented. Guys, Please share your thoughts on this.

Also, my solution 112850313 for B question 1511B - GCD Length seems to be have been judged incorrectly. I have tested it with the help of my friend IamNobody for all possible 285 test cases. Please find the validator Code that we used. FYI, I have used 11 and 13 powers to make sure "x" and "y" remain coprime after dividing with gcd. Couldn't find failing test case from submission logs since it was too big.

It would be great if someone can point out where the mistake is. Thanks for reading :)

Edit : Found the failing test case(first one). But to my surprise it gives different output when I run in local.FYI, I use g++ (gcc version 7.5.0 ) to compile my cpp codes.