Explain each line of code and what it does line by line tosomeone with a limited knowledge of c++<br/><img src="https://media.cheggcdn.com/media%2F5dc%2F5dc9cb73-7e03-4228-bd46-917f6ee07f9d%2Fimage" alt="#include <iostream> using namespace std:; int mainO int n; cout
<br/><img src="https://media.cheggcdn.com/media%2F2ca%2F2ca8bc37-973b-4414-907b-94871eb218d2%2Fimage" alt="16) Write a C++ function that adds a node and its two child nodes to a binary tree. 11 pts 17) Write a C++ function that accepts strings