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We discussed the basic tree traversals in this post – Basic tree traversals We learned about the pre-order traversal, in-order traversal and post-order traversal. These are standard traversals that are related with root, left sub-tree and the right sub-tree. Level order traversal follows an entirely different approach and is not related with the left sub-tree and the right sub-tree. It does not hold the same property for all the nodes and hence recursive technique cannot be applied to level order traversal. Let us try to understand with the help of …