What is a complete binary tree?

What is a complete binary tree? Correct Answer A binary tree, which is completely filled, with the possible exception of the bottom level, which is filled from left to right

A binary tree, which is completely filled, with the possible exception of the bottom level, which is filled from left to right is called complete binary tree. A Tree in which each node has exactly zero or two children is called full binary tree. A Tree in which the degree of each node is 2 except leaf nodes is called perfect binary tree.
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