What is The Hardest Course?
I reccomend that you challenge yourself, with C++ @Awesome Your right, that language is messed up.
If you're finding the hardest course here, well, you might not find the right answer because it depends from person to person.
In my experience, most students complain about how hard c++ is to grasp. I think if you decide to learn C++ and/or Java, you're going to have an easy time to learn other guys.
I think C++ :)
Its Brainfuck(Programming language) in my opinion It have only 8 commands its not in sololearn its very old language source:wiki
dunno, my course is almost done
and I like potatos