about neural networks, see my
2 NN simulators
After brief reading of the second problem, I think it should be easily solved in LISP
And last binary tree problem is also easy to solve in LISP, but It should not be problem to programm it in C++ too.
From my point of wiew, hardest part is to understand what they want to do. It is hard to read
also I don't think I want to solve those, I have my own programming problems, far more complicated
