What is a complete binary tree?
Understand the Problem
The question is asking for a definition of a complete binary tree, which is a specific type of binary tree used in computer science and data structures. A complete binary tree is one in which all levels are fully filled except possibly for the last level, which is filled from left to right.
Answer
A binary tree in which every level, except possibly the last, is completely filled, and all nodes in the last level are as far left as possible.
A complete binary tree is a binary tree in which every level, except possibly the last, is completely filled, and all nodes in the last level are as far left as possible.
Answer for screen readers
A complete binary tree is a binary tree in which every level, except possibly the last, is completely filled, and all nodes in the last level are as far left as possible.
More Information
A complete binary tree ensures that all levels are fully filled before the last level, and even in the last level, nodes are filled from left to right without any gaps.
Tips
Often people confuse complete binary trees with perfect binary trees. Remember, a perfect binary tree is a type of complete binary tree where all levels including the last one are fully filled.
Sources
- Complete Binary Tree - GeeksforGeeks - geeksforgeeks.org
- Complete Binary Tree - Programiz - programiz.com
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