Which of the following is a characteristic of a complete binary tree?

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Question: Which of the following is a characteristic of a complete binary tree?

Options:

Correct Answer: All levels are fully filled except possibly the last

Solution:

A complete binary tree is defined as one where all levels are fully filled except possibly the last, which is filled from left to right.

Which of the following is a characteristic of a complete binary tree?

Which of the following is a characteristic of a complete binary tree?

Step 1: Understand what a binary tree is. A binary tree is a structure where each node has at most two children.
Step 2: Learn about the levels in a binary tree. The top level is level 0, the next level is level 1, and so on.
Step 3: Know that a complete binary tree is one where every level, except possibly the last one, is completely filled with nodes.
Step 4: Recognize that in the last level, nodes must be filled from the left side to the right side without any gaps.

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