GATE CSE 2006 | Trees Question 45 | 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

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. If only the root node does not satisfy the heap property, the algorithm to convert the complete binary tree into a heap has the best asymptotic time complexity of

O(n)

O(log n)

O(nlog n)

O(n log log n)

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. If the root node is at level 0, the level of element X[i], i ≠ 0, is

⌊log₂ i⌋

⌈log₂ (i + 1)⌉

⌊log₂ (i + 1)⌋

⌈log₂ i⌉

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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