Types of Binary Tree.
Types of Binary Tree in Data Structure. Let's see Binary Tree types with example. There are mainly 3 types of Binary trees.
- Full binary tree / Proper binary tree / 2-tree / Strictly binary tree)
- Perfect Binary Tree.
- Complete Binary Tree:
Full binary tree / Proper binary tree / 2-tree / Strictly binary tree)
Full Binary Tree is a tree in which every node except leaves/leaf node has either 0 or 2 children.
There will be no leaves with only 1 child.
Example of Full Binary Tree:
Perfect Binary Tree
It is same as Full Binary tree with only difference as all Leaf Node of a Tree is at same Level.
It means all the internal nodes must have 2 children.
Example of Perfect Binary Tree:
Complete Binary Tree
A complete binary tree is a binary tree in which every level, except possibly the last, is completely filled, and for Last level, and all nodes are as far left as possible.
A complete binary tree is a binary tree which follows a pattern like Root, Left child and Right child while creation of nodes till its last Node is called complete binary tree,
If at any Level if Right child of a Node is Present without Left child then such a tree is not a Complete Binary Tree. For a Tree to be complete Binary Tree, It should have a Node, Left Child and a Right Child in sequence.
Example of Complete Binary Tree:
Example of Not Complete Binary Tree:
It is Not a complete Binary Tree because it has not followed node creation in Root node, Left child and Right child fashion.
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Enjoy !!!!
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