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

Practice Questions

Q1
Which of the following is a characteristic of a complete binary tree?
  1. All levels are fully filled except possibly the last
  2. All nodes have two children
  3. It is always balanced
  4. It has a maximum height of log n

Questions & Step-by-Step Solutions

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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