hello ! , thank you for your post.
I'm expert in C/C++/C#, OpenGL, Graphics,VB, .net, ASP.net, java, Qt, algorithm.
your task is not so difficult for me.
and also I have sufficient experience in coding
i finished 1,2 problem.
i needed to tell me more detail for 3 problem.
so I will successfully complete your task.
i'd hope to contact you ASAP and let's discuss your task.
best regards.