C++ Help:

Extend this program (https://pastebin.com/jEj08ZWu).

- Implement search functionality that will search for a name and indicate the weight for that individual if they exist in the structure, otherwise stating no match exists.

- Determine the lowest weight contained in the tree.

- Find the first name in alphabetical order (this should not go through every node, unless the tree happens to be a linked list).