1
GATE CSE 2006
MCQ (Single Correct Answer)
+2
-0.6
An array X of n distinct integers is interpreted as a complete binary tree. The index of the first element of the array is 0. The index of the parent of element X[i],i≠0 is?
A
⌊ i/2 ⌋
B
⌈ (i-1)/2 ⌉
C
⌈ i/2 ⌉
D
⌈ i/2 - 1 ⌉
2
GATE CSE 2006
MCQ (Single Correct Answer)
+2
-0.6
Which of the following sequences of array elements forms a heap?
A
{23, 17, 14, 6, 13, 10, 1, 12, 7, 5}
B
{23, 17, 14, 6, 13, 10, 1, 5, 7, 12}
C
{23, 17, 14, 7, 13, 10, 1, 5, 6, 12}
D
{23, 17, 14, 7, 13, 10, 1, 12, 5, 7}
3
GATE CSE 2006
MCQ (Single Correct Answer)
+2
-0.6
Suppose that we have numbers between 1 and 100 in a binary search tree and want to search for the number 55. Which of the following sequences CANNOT be the sequence of nodes examined?
A
{10, 75, 64, 43, 60, 57, 55}
B
{90, 12, 68, 34, 62, 45, 55}
C
{9, 85, 47, 68, 43, 57, 55}
D
{79, 14, 72, 56, 16, 53, 55}
4
GATE CSE 2005
MCQ (Single Correct Answer)
+2
-0.6
How many distinct binary search trees can be created out of 4 distinct keys?
A
5
B
14
C
24
D
42
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