Better Approach for 4-level Tree Structure

1. Which of the following algorithms is better suitable for level order traversal formation for a tree?
2. Which tree traversal is most efficient?
3. Which is the most suitable data structure for tree creation?

Which of the following algorithms is better suitable for level order traversal formation for a tree?

Use DFS to traverse the tree and maintain height for the current node.

Which tree traversal is most efficient?

Inorder Traversal. Inorder Traversal is the one the most used variant of DFS(Depth First Search) Traversal of the tree.

Which is the most suitable data structure for tree creation?

Array is a good static data structure that can be accessed randomly and is fairly easy to implement. Linked Lists on the other hand is dynamic and is ideal for application that requires frequent operations such as add, delete, and update.