Write a program in c++ that will be read the file input and display it in NLR as an AVL tree For an example of text file format, (a) adds a node and (e) deletes a node a 3 a 6 a 65 e 3

What is the code in C++?

Programing C Just with #include Creating a Tree In this challenge, you will have to use pointers to create a tree. More specifically, the tree shown below: n1 n2 n3 n4 "end" "end" n5 "end" n6 "end" n7 "end" "end" "end" "end" "end" "end" "end" "end" "end" "end" "end" should be the same end we discussed in class for singly linked lists In other words, you will have to create structures that contain one value and three pointers. You will then have to declare your nodes and have their pointers (arrows), point to the nodes specified in the three. You will do this in the exact same way as we did with linked lists. The differences here are that you have more pointers and a different layout of the nodes. Your program should not print anything. It is merely meant to show your understanding of pointers and “nodes" (structures). Therefore, aside from the definitions of your structures, everything should be in main.

Write a program that maintains a personal phone book in C. The program allows to:▪ Add and Delete entries from the phone book,▪ Search the phone book for a specific entry by last name or by phone number, and▪ Print out the entire entries in the phone book.The data in the phone book is maintained by storing in memory with the use of a singly linked list, withone list node per entry. Each node contains members for storing a person’s family name, first name, address,and the phone number. Use strings to store this information. The linked list must be kept in increasingalphabetical order, sorted by family name. There are no duplicate entries with the same family nameallowed in the phone book. This program should be menu driven, with the user being offered a choice of the following commandsdescribed below:▪ Insert a new entry into the phone book.The program should prompt the user for a new family name and first name, an address and a phonenumber. This information should be placed in a new…