Level Order Traversal

Level order traversal, also known as breadth-first traversal, involves visiting all the nodes of a level before moving on to the next level. In this traversal, you start at the root, then visit all nodes at depth 1, then all nodes at depth 2, and so on.

Here’s how you’d perform a level order traversal on your example tree:

1. Visit the root node: 1.

2. Visit all nodes at depth 1: 2, 6.

3. Visit all nodes at depth 2: 3, 4, 7, 9.

4. Visit all nodes at depth 3: 5, 8.

The sequence of visited nodes would be: 1, 2, 6, 3, 4, 7, 9, 5, 8.