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do it with data structures - java
Write a recursive private method called countLeafAndOneEvenChild to be included in class BinaryTree as discussed in the lectures. The method counts and returns the number of leaf nodes and nodes having only one even child node in the binary tree.
This method is called from a public method countLeafAndOneEvenChild, given as follows:
public int countLeafAndOneEvenChildBT() {
return countLeafAndOneEvenChild(root);
}
Method heading:
private int countLeafAndOneEvenChild (Node<E> node)
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