Comments
+8

Ciallo ～(∠・ω< )⌒★
0

I think it may just be a temporary roll back caused by either cheaters or wrong cheating detections. I believe that this would be solved in a few hours (or days).
0

Thanks for the solution. I was so confused with the problem :/
+1

Hope I can reach expert after this round :D
-12

+1
0

Thanks for fast editorial!
+10

Thanks for the editorial and the contest. It was great.