What is the time complexity of traversing a binary tree using in-order traversal
Practice Questions
Q1
What is the time complexity of traversing a binary tree using in-order traversal?
O(n)
O(log n)
O(n log n)
O(1)
Questions & Step-by-Step Solutions
What is the time complexity of traversing a binary tree using in-order traversal?
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: Learn about in-order traversal. In-order traversal means visiting the left child, then the current node, and finally the right child.
Step 3: Realize that during in-order traversal, you visit each node in the tree exactly once.
Step 4: Count the number of nodes in the tree. Let's call this number 'n'.
Step 5: Since you visit each of the 'n' nodes once, the total time taken for the traversal is proportional to 'n'.
Step 6: Conclude that the time complexity of in-order traversal is O(n), where 'n' is the number of nodes in the binary tree.
