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TwoTreeSameSkeleton.java
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TwoTreeSameSkeleton.java
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public class TwoTreeSameSkeleton {
class Node {
int data;
Node left;
Node right;
}
public Node createNewNode(int data) {
Node node = new Node();
node.left = null;
node.right = null;
return node;
}
public boolean isSameSkeleton(Node root1, Node root2) {
if (root1 == null && root2 == null) {
return true;
}
if ((root1 == null && root2 != null) || (root1 != null && root2 == null)) {
return false;
}
return isSameSkeleton(root1.left, root2.left) && isSameSkeleton(root1.right, root2.right);
}
public static void main(String[] args) {
TwoTreeSameSkeleton tree = new TwoTreeSameSkeleton();
Node root1 = tree.createNewNode(2);
root1.left = tree.createNewNode(7);
root1.right = tree.createNewNode(8);
root1.left.left = tree.createNewNode(5);
root1.left.right = tree.createNewNode(5);
Node root2 = tree.createNewNode(3);
root2.left = tree.createNewNode(6);
root2.right = tree.createNewNode(7);
root2.left.left = tree.createNewNode(5);
root2.left.right = tree.createNewNode(5);
// root2.left.right.left = tree.createNewNode(11);
System.out.println(tree.isSameSkeleton(root1, root2));
}
}