Sorry for massive. About c or c++. The first option has too many errors so i need use cin or gets. But how. I need also use function insert so maybe there are no need to use cin. So question is very simple. How using insert function create several elements of tree. And display them. In the last case maybe there will be need to create another function. But for inserting it is but how to do it in main function to make it element by element.