How do different tree traversal algorithms compare?

What are the main types of tree traversal algorithms?

The main types of tree traversal algorithms are in-order, pre-order, post-order, and level-order.

Can you explain the difference between in-order and pre-order traversals?

In in-order traversal, you visit the left subtree, then the node, and finally the right subtree. In pre-order, you visit the node first, then the left subtree, and finally the right subtree.

Which traversal is more efficient for searching?

In general, in-order traversal is more efficient for searching in binary search trees, as it visits nodes in sorted order.

Are there any scenarios where level-order traversal is preferred?

Yes, level-order traversal is preferred when you need to process nodes level by level, such as in breadth-first search.