Data Structures
Stacks and Queues
Marks 1Marks 2
Linked List
Marks 1Marks 2
1
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
A
$$\Omega \left( {\log \,\,n} \right)$$
B
$$\Omega \left( n \right)$$
C
$$\Omega \left( {n\,\,\log \,\,n} \right)$$
D
$$\Omega \left( {{n^2}} \right)$$
2
GATE CSE 2015 Set 2
Numerical
+1
-0
A binary tree $$T$$ has $$20$$ leaves. The number of nodes in $$T$$ having two children is _______________.
Your input ____
3
GATE CSE 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
The height of a tree is the length of the longest root-to-leaf path in it. The maximum and minimum number of nodes in a binary tree of height 5 are
A
63 and 6, respectively
B
64 and 5, respectively
C
32 and 6, respectively
D
31 and 5, respectively
4
GATE CSE 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Which of the following is/are correct inorder traversal sequence(s) of binary search tree(s)?

I. 3, 5, 7, 8, 15, 19, 25
II. 5, 8, 9, 12, 10, 15, 25
III. 2, 7, 10, 8, 14, 16, 20
IV. 4, 6, 7, 9 18, 20, 25

A
I and IV only
B
II and III only
C
II and IV only
D
II only
GATE CSE Subjects
Theory of Computation
Operating Systems
Algorithms
Digital Logic
Database Management System
Data Structures
Computer Networks
Software Engineering
Compiler Design
Web Technologies
General Aptitude
Discrete Mathematics
Programming Languages
Computer Organization