give root binary tree determine complete binary treeIn complete binary tree level possibly completely fill node level far leave possible it 1 2h node inclusive level h example 1input root 123456output trueexplanation every level ie level nodevalue 1 2 3 node level 4 5 6 far leave possibleexample 2input root 12345null7output falseexplanation the node value 7 is not far leave possible ConstraintsThe number nod tree range 1 1001 Nodeval 1000