GATE CSE 2006 | Trees Question 48 | Data Structures

GATE CSE 2006

MCQ (Single Correct Answer)

-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?

⌊ i/2 ⌋

⌈ (i-1)/2 ⌉

⌈ i/2 ⌉

⌈ i/2 - 1 ⌉

GATE CSE 2006

MCQ (Single Correct Answer)

-0.6

Which of the following sequences of array elements forms a heap?

{23, 17, 14, 6, 13, 10, 1, 12, 7, 5}

{23, 17, 14, 6, 13, 10, 1, 5, 7, 12}

{23, 17, 14, 7, 13, 10, 1, 5, 6, 12}

{23, 17, 14, 7, 13, 10, 1, 12, 5, 7}

GATE CSE 2006

MCQ (Single Correct Answer)

-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?

{10, 75, 64, 43, 60, 57, 55}

{90, 12, 68, 34, 62, 45, 55}

{9, 85, 47, 68, 43, 57, 55}

{79, 14, 72, 56, 16, 53, 55}

GATE CSE 2005

MCQ (Single Correct Answer)

-0.6

Postorder traversal of a given binary search tree T produces the following sequence of keys 10, 9, 23, 22, 27, 25, 15, 50, 95, 60, 40, 29 Which one of the following sequences of keys can be the result of an inorder traversal of the tree T?

9, 10, 15, 22, 23, 25, 27, 29, 40, 50, 60, 95

9, 10, 15, 22, 40, 50, 60, 95, 23, 25, 27, 29

29, 15, 9, 10, 25, 22, 23, 27, 40, 60, 50, 95

95, 50, 60, 40, 27, 23, 22, 25, 10, 9, 15, 29

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