package binarytree;
class Node {
Node left;
Node right;
int data;
}
class BinaryTree {
public boolean isSiblings(Node node, Node a, Node b) {
if (node == null) {
return false;
}
return (node.left == a && node.right == b)
|| (node.left == b && node.right == a)
|| isSiblings(node.left, a, b)
|| isSiblings(node.right, a, b);
}
public Node createNewNode(int val) {
Node newNode = new Node();
newNode.data = val;
newNode.left = null;
newNode.right = null;
return newNode;
}
}
public class BinaryTreeApp {
public static void main(String[] args) {
BinaryTree a = new BinaryTree();
Node root = a.createNewNode(2);
root.left = a.createNewNode(7);
root.right = a.createNewNode(9);
root.right.right = a.createNewNode(3);
root.left.left = a.createNewNode(10);
root.left.right = a.createNewNode(6);
root.left.right.left = a.createNewNode(5);
root.left.right.right = a.createNewNode(11);
System.out.println(a.isSiblings(root, root.left.right.left, root.left.right.right));
}
}
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