I used G++ for a long time, now I decided to migrate to Visual C++ but codeforces don't has support for Visual Studio 2012. That is a trouble cause the C++ 11 standard is under implementation for VS and we can find many differences between VS2010 and VS2012. I wonder if would be to risky to write code in my VS2012 and send it for the VS2010 compiler. Any experience will be welcome. Thanks.