What is the output of the following Python code for a binary tree traversal: 'pr
Practice Questions
Q1
What is the output of the following Python code for a binary tree traversal: 'preorder_traversal(root)'?
Left, Root, Right
Root, Left, Right
Left, Right, Root
Right, Left, Root
Questions & Step-by-Step Solutions
What is the output of the following Python code for a binary tree traversal: 'preorder_traversal(root)'?
Step 1: Understand what a binary tree is. A binary tree is a data structure where each node has at most two children, referred to as the left child and the right child.
Step 2: Know what preorder traversal means. Preorder traversal is a way to visit all the nodes in a binary tree in a specific order.
Step 3: In preorder traversal, you first visit the root node of the tree.
Step 4: After visiting the root, you move to the left child and perform the same traversal on the left subtree.
Step 5: Once the left subtree is completely visited, you then move to the right child and perform the traversal on the right subtree.
Step 6: The order of visiting nodes in preorder traversal is: Root, then Left subtree, then Right subtree.
