http://codeforces.com/contest/1204
The second rating, late ah good time, do two to hang up (thought it would be out a lot of points, I did not expect only lost 7 points)
A、
http://codeforces.com/contest/1204
The second rating, late ah good time, do two to hang up (thought it would be out a lot of points, I did not expect only lost 7 points)
A、