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ISRO | ISRO CS 2020 | Question 53

  • Last Updated : 08 Sep, 2020

What is the in-order successor of 15 in the given binary search tree ?


(A) 18
(B) 6
(C) 17
(D) 2


Answer: (C)

Explanation: Inorder Successor of a node in binary tree is the next node in Inorder traversal of the Binary Tree.

Inorder of above given tree,

2 3 4 6 7 9 13 15 17 18 20 

Therefore, 17 is the inorder successor of 15.

Option (C) is correct.


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