1

GATE CSE 2018

Numerical

+1

-0

The postorder traversal of a binary tree is $$8,9,6,7,4,5,2,3,1.$$ The inorder traversal of the same tree is $$8,6,9,4,7,2,5,1,3.$$ The height of a tree is the length of the longest path from the root to any leaf. The height of the binary tree above is ______.

Your input ____

2

GATE CSE 2015 Set 3

Numerical

+1

-0

Consider a binary tree $$T$$ that has $$200$$ leaf nodes. Then, the number of nodes in $$T$$ that have exactly two children are ________.

Your input ____

3

GATE CSE 2015 Set 3

MCQ (Single Correct Answer)

+1

-0.3

While inserting the elements $$71, 65, 84, 69, 67, 83$$ in an empty binary search tree $$(BST)$$ in the sequence shown, the element in the lowest level is

4

GATE CSE 2015 Set 2

MCQ (Single Correct Answer)

+1

-0.3

Consider a complete binary tree where the left and the right sub-trees of the root are max-heaps. The lower bound for the number of operations to convert the tree to a heap is

Questions Asked from Trees (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE CSE 2022 (1)
GATE CSE 2020 (2)
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GATE CSE 2015 Set 3 (2)
GATE CSE 2015 Set 2 (2)
GATE CSE 2015 Set 1 (3)
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GATE CSE 2007 (2)
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GATE CSE 2005 (1)
GATE CSE 2004 (2)
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GATE CSE 1987 (2)

GATE CSE Subjects

Theory of Computation

Operating Systems

Algorithms

Database Management System

Data Structures

Computer Networks

Software Engineering

Compiler Design

Web Technologies

General Aptitude

Discrete Mathematics

Programming Languages