They are a series of video lectures each week followed by some homework which you can complete at any time up to the deadline. They are considerate of their international students and you'll have the whole week to fit it in at a time that suits you. Sign up and try them out, you've nothing to lose but a bit of your time and you can drop one or both if you don't find them useful. I don't know what these ones will be like, but I've done a few of these online courses and they've been pretty good except for the Software as a Service one (but I only signed up for it because the ones I wanted were delayed). I did the Machine Learning (which is being offered again next week through Coursera) the first time it was offered last October and can recommend that, there is a bit of programming involved, but nothing I found difficult.

If you really want to start with C++ thats up to you, it might work for you, but there are also Qt libraries for Python which is generally considered a better language for beginners, not that I'm an expert, I've never really got very far whatever I've tried, I tend to lose motivation after doing the basics, but I'm hoping these online courses will push me to a useful level.