This is not meant to be a advertising post, more or less a post to teach beginner programmers.
Sorry, I don't really buy that. Both of the posts you've made thus far (and your signature) have been advertising your site.
Besides which, I've tried at least one of the challenges on your site which is badly worded / just plain wrong:
Given 2 ints, a and b, return true if one of them is 10 or if their sum is 10.
Technically speaking, "return true;" would be a valid solution to that problem. I'm still returning true in all the cases you specified, and you gave no requirement as to what the program should do if those conditions aren't met.
There's also the question of ambiguity between whether "one" of them is 10, do you mean one or the other (XOR) or do you mean one and only one is 10?
Assuming you mean OR and not XOR, then a perfectly valid solution to the problem would be:
...which fails. The expected output dialog is also wrong:
Expected This run
1 true OK
Err... you might want to distinguish between 1 and true.
I'd actually recommend beginners stay away from these for a while. They look more confusing than helpful, at least in their present state.