1. Write a program to create binary tree using array. Ask the user to enter the number of nodes and then insert each node at its correct position.


2. Write a program to create binary tree using linked list. Ask the user to enter the number of nodes and then dynamically 
Display the nodes at each level.

3. Write a program to implement in-order traversal of a binary tree. You can create the binary tree using either array or linked list.

4. Write a program to implement pre-order traversal of a binary tree. You can create the binary tree using either array or linked list.

5. Write a program to implement post-order traversal of a binary tree. You can create the binary tree using either array or linked list.