In C++, please. Do exactly what is asked. Thank you!
Considered the output of a to_string method below and show the tree that
would be built by the following data lines is the binary search tree.
Also, provide the text document that has the respective tree and
answers to any questions asked.
30
15
4
NULL
NULL
20
18
NULL
19
NULL
NULL
NULL
35
32
NULL
NULL
38
NULL
NULL