Question: In a Red-Black tree, what color is the root node required to be?
Options:
Red
Black
Either red or black
None of the above
Correct Answer: Black
Solution:
The root node of a Red-Black tree is required to be black, which is one of the properties that help maintain the balance of the tree.
In a Red-Black tree, what color is the root node required to be?
Practice Questions
Q1
In a Red-Black tree, what color is the root node required to be?
Red
Black
Either red or black
None of the above
Questions & Step-by-Step Solutions
In a Red-Black tree, what color is the root node required to be?
Step 1: Understand what a Red-Black tree is. It is a type of binary search tree that has specific properties to keep it balanced.
Step 2: Learn about the properties of a Red-Black tree. One of these properties states that the root node must always be black.
Step 3: Recognize that having the root node as black helps maintain the overall balance of the tree, which is important for efficient operations like searching and inserting.
Red-Black Tree Properties – A Red-Black tree is a type of self-balancing binary search tree that maintains specific properties, including that the root must be black.
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