Data Structures | Binary Trees | Question 1
Which of the following is true about Binary Trees?
Every binary tree is either complete or full.
Every complete binary tree is also a full binary tree.
Every full binary tree is also a complete binary tree.
No binary tree is both complete and full.
None of the above
A full binary tree (sometimes proper binary tree or 2-tree or strictly binary tree) is a tree in which every node other than the leaves has two children. A complete binary tree is a binary tree in which every level, except possibly the last, is completely filled, and all nodes are as far left as possible. A) is incorrect. For example, the following Binary tree is neither complete nor full
12 / 20 / 30
B) is incorrect. The following binary tree is complete but not full
12 / \\ 20 30 / 30
C) is incorrect. Following Binary tree is full, but not complete
12 / \\ 20 30 / \\ 20 40
D) is incorrect. Following Binary tree is both complete and full
12 / \\ 20 30 / \\ 10 40
Quiz of this Question
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