1
GATE CSE 1996
MCQ (Single Correct Answer)
+2
-0.6
The minimum number of interchanges needed to convert the array

89, 19, 40, 17, 12, 10, 2, 5, 7, 11, 6, 9, 70

into a heap with the maximum element at the root is
A
0
B
1
C
2
D
3
2
GATE CSE 1994
MCQ (Single Correct Answer)
+2
-0.6
Which one of the following statements is false?
A
Optimal binary search tree construction can be performed efficiently using dynamic programming.
B
Breadth-first search cannot be used to find connected components of a graph
C
Given the prefix and postfix walks over a binary tree, the binary tree cannot be uniquely constructed.
D
Depth-first search can be used to find connected components of a graph.
3
GATE CSE 1992
MCQ (Single Correct Answer)
+2
-0.6
Following algorithm(s) can be used to sort n integers in the range [1....... n3] in O(n) time
A
Heapsort
B
Quicksort
C
Merge sort
D
Radix sort
4
GATE CSE 1991
Numerical
+2
-0
Minimum number of comparisons required to sort 5 elements
Your input ____

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