Question

In order to store a binary tree structure in an array (specifying the parent-child relationship), we have to use the linked-list data structure.

a) True
b) False

Answer 1

To store a binary tree structure in an array, we don't necessarily need to use the linked-list data structure. Instead, we can use a linear array representation or an array-based representation that follows a specific indexing scheme.

Step-by-step explanation:

The statement is false. To store a binary tree structure in an array, we don't necessarily need to use the linked-list data structure. Instead, we can use a linear array representation or an array-based representation that follows a specific indexing scheme.

For example, if we consider a complete binary tree, we can store the tree in an array by using a formula based on the indices of the parent and its children nodes. Let's say we have a tree with n nodes. We can then represent the parent-child relationship using array indices as follows:

1. The root node is at index 0.
2. For any node at index i, its left child is at index 2i + 1 and its right child is at index 2i + 2.

This way, we can store the binary tree structure in an array and access the nodes using simple arithmetic calculations based on the array indices.