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.

O true
O false

Answer 1

The statement that a linked-list must be used to store a binary tree in an array is false. Binary trees can be stored in an array using a particular indexing pattern to maintain the parent-child relationship.

Step-by-step explanation:

The question asks whether a linked-list data structure must be used to store a binary tree structure in an array. This statement is false. A binary tree can indeed be represented in an array without the need for a linked-list structure. The parent-child relationship can be maintained by following a specific indexing pattern.

For example, if a parent is at index i, then its left child is at index 2i + 1 and its right child is at index 2i + 2. Conversely, to find the parent of a node at index i, one would calculate (i-1)/2. This indexing method is commonly used in heap data structures, which are a specialized type of binary tree.