Another year, another try to see if I can manage to make it till the end (probably not).
So like the previous years, each day part is present in a separate directory with it's own files.
To check the solution of each day part, you'll need the latest .NET Core version with C# 6.0 or higher (https://github.com/dotnet/roslyn). After that, it's an easy 1-2-3 step in order to get the solution of each day part.
cd C:\Projects\GitHub\adventofcode-2018\day-1-1
dotnet build
dotnet run