Skip to content
Related Articles

Related Articles

Improve Article
Aptitude | GATE CS 1998 | Question 24
  • Last Updated : 15 Feb, 2018

Which of the following statement is false?
(A) A tree with n nodes has (n-1) edges.
(B) A labeled rooted binary tree can be uniquely constructed given its postorder and preorder traversal results.
(C) A complete binary tree with n internal nodes has (n+1) leaves.
(D) The maximum number of nodes in a binary tree of height h is (2^(h+1) -1).


Answer: (B) (C)

Explanation: Both option (A) and (D) are correct. But option (B) is false because “a labeled rooted binary tree can not be uniquely constructed given using its postorder and preorder traversal results”. It need inorder and preorder/postorder for uniquely constructed binary tree.

Option (C) is also false, take counter example in given tree :
ALDS1_9_A_1

Therefore, both option (B) and (C) are false.

Quiz of this Question

Attention reader! Don’t stop learning now. Learn all GATE CS concepts with Free Live Classes on our youtube channel.

My Personal Notes arrow_drop_up
Recommended Articles
Page :