What is the time complexity of a level order traversal of a binary tree?

What is the time complexity of a level order traversal of a binary tree?

Step 1: Understand what level order traversal means. It is a way to visit all the nodes in a binary tree level by level, starting from the root.
Step 2: Realize that during level order traversal, we visit each node in the tree exactly once.
Step 3: Count the total number of nodes in the binary tree. Let's call this number 'n'.
Step 4: Since we visit each of the 'n' nodes once, the total time taken for the traversal is proportional to 'n'.
Step 5: Conclude that the time complexity of level order traversal is O(n), where n is the number of nodes in the tree.

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