@Test
public void test() {
int[] A = new int[] {0, 1, 0, 0, 4, 0, 5};
int[] B = new int[] {0, 1, 0, 0, 4, 0, 5};
TreeNode root = new TreeNode(A);
TreeNode root2 = new TreeNode(B);
System.out.println(root.printTree());
System.out.println(sinkZerosInBT(root).printTree());
System.out.println(sinkZerosInBT2(root2).printTree());
}
