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Code Binary Tree

Count full nodes in a Binary tree

In a binary tree, a full node is a node that has exactly two children. Counting full nodes in a binary tree means finding the total number of nodes in the tree that have both a left and a right child.

To count the full nodes in a binary tree, you need to traverse the entire tree and check each node to see if it has two children. One approach is to use a depth-first search or breadth-first search algorithm to visit each node in the tree, and increment a count variable each time a node with two children is encountered.

Detect and count full nodes in binary tree

In the above example there are only tree full nodes. In which [8,5,9] has both children.

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