Tree Traversals
Question 1 |
The preorder traversal sequence of a binary search tree is 30, 20, 10, 15, 25, 23, 39, 35, 42. Which one of the following is the postorder traversal sequence of the same tree?
10, 20, 15, 23, 25, 35, 42, 39, 30 | |
15, 10, 25, 23, 20, 42, 35, 39, 30 | |
15, 20, 10, 23, 25, 42, 35, 39, 30 | |
15, 10, 23, 25, 20, 35, 42, 39, 30 |
Question 1 Explanation:

From the data,

The Postorder traversal sequence is:
→ 15, 10, 23, 25, 20, 35, 42, 39, 30.
There is 1 question to complete.