How Do You Perform Preorder Traversal in a Given Binary Tree?

Obaidul Haque    29 Jun, 2024 11:55:50 PM    1    54

Best Answer: Trees can be traversed in multiple ways:

Depth-first traversal:

(a) Inorder (Left, Root, Right) : 4 2 5 1 3

(b) Preorder (Root, Left, Right) : 1 2 4 5 3

(c) Postorder (Left, Right, Root) : 4 5 2 3 1

Breadth-First or Level Order Traversal: 1 2 3 4 5

Inorder traversal:

Algorithm Inorder(tree)

1. Traverse the left subtree, i.e., call Inorder(left-subtree)

2. Visit the root.

3. Traverse the right subtree, i.e., call Inorder(right-subtree)

Preorder traversal:

Algorithm Preorder(tree)

1. Visit the root.

2. Traverse the left subtree, i.e., call Preorder(left-subtree)

3. Traverse the right subtree, i.e., call Preorder(right-subtree)

Obaidul Haque    29 Jun, 2024 11:55:50 PM

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