My rating was 1599 after round 1095 before rollback, and after rollback it looks weird, maybe adding some notes will make it better? 
My rating was 1599 after round 1095 before rollback, and after rollback it looks weird, maybe adding some notes will make it better? 
When I was solving a problem yesterday, I came up with a possible way but couldn't guarantee that it'll pass, since I wasn't able to come up with another solution then, I decided to submit it and it surprisingly passed!
Problem:https://codeforces.me/contest/1941/problem/F
My submission:https://codeforces.me/contest/1941/submission/256085119
But after a few hour, I realized that the solution can be hacked and came up with the test.
And that's why now I have some questions, is it possible to add any test now, and if it's possible, will this test be added? Thanks for your answer.