In a Red-Black tree, what color can the root node be?

₹0.0

Question: In a Red-Black tree, what color can the root node be?

Options:

Correct Answer: Black

Solution:

The root node of a Red-Black tree must always be black to maintain the properties of the tree.

In a Red-Black tree, what color can the root node be?

In a Red-Black tree, what color can the root node be?

Step 1: Understand what a Red-Black tree is. It is a type of binary search tree that has specific properties regarding the color of its nodes.
Step 2: Know that each node in a Red-Black tree can be either red or black.
Step 3: Learn about the properties of a Red-Black tree. One of the properties states that the root node must always be black.
Step 4: Remember that this rule helps maintain balance in the tree, which is important for efficient operations like searching and inserting.

Red-Black Tree Properties – A Red-Black tree is a balanced binary search tree with specific properties, including that the root must be black.