Tree Traversals in Binary Tree for Beginner in Computer Science

Tree Traversals

1. Tree Traversals: Preorder, Inorder , Postorder A hands-on introduction to Binary Tree Traversals

2. Introduction to Tree Traversals Define what tree traversal is. Importance of traversing a binary tree. Different types of traversals: Depth-first (Preorder, Inorder , Postorder ) and Breadth-first (Level order).

3. Overview of Binary Trees Quick introduction to binary trees. Basic terms (Node, Root, Leaf, Parent, Child, Subtree). Visualize a simple binary tree structure for reference.

4. Preorder Traversal (Root, Left, Right) Preorder traversal is a tree traversal algorithm that visits nodes in a specific order, starting at the root node and moving to the left and right subtrees Provide the algorithm: Visit root node. Traverse left subtree. Traverse right subtree.

5. Inorder Traversal (Left, Root, Right) Inorder traversal is a depth-first search algorithm that visits nodes in a tree in a specific order Provide the algorithm: Traverse left subtree. Visit root node. Traverse right subtree.

6. Postorder Traversal (Left, Right, Root) Postorder traversal is a depth-first search algorithm for a binary search tree that first traverses the left subtree, then the right subtree, and then the root. Provide the algorithm: Traverse left subtree. Traverse right subtree. Visit root node.

7. Visual Comparison of Traversals

8. Applications of Tree Traversals Real-life applications of each traversal method: Preorder : Copying the structure of the tree. Inorder : Used to retrieve nodes of a binary search tree in sorted order. Postorder : Deleting or freeing nodes.