Answer 1

Python and Pygame (For beginner): https://www.youtube.com/playlist?list=PL6gx4Cwl9DGAjkwJocj7vlc_mFU-4wXJq

Unity and C#: https://unity3d.com/learn/tutorials/s/scripting

OpengGL: http://www.opengl-tutorial.org/

Jgrapht: http://jgrapht.org/

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