Save load Decision Tree in C++

Question

How can handel decition tree save and load correctly by every change in depth or high or branches that form has changed any way, my trouble is not solve by level order traverse. Have any solution?

Answer 1

https://code.sololearn.com/cVy5G7zo8L9e/?ref=app

Answer 2

Please move code link into original post's Description. People may mistaken you already have answer and refrain from opening this post, all because you put code link in "Answer" section.

Also add C++ in the tags ...

I'll delete this soon, hope you find your way ...