GATE & PSUs - Computer Science & Information Technology (CS & IT)

Linear Data Structures (Arrays, Stacks, Queues) question bank (Data Structures & Algorithms)

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Q1.
[Linear Data Structures (Arrays, Stacks, Queues) Concept 2] What is the worst-case time complexity of building a max-heap of $n$ elements from an arbitrary unsorted array using the bottom-up `Build-Heap` procedure?

(A)
$\Theta(n)$
(B)
$\Theta(n \log n)$
(C)
$\Theta(n^2)$
(D)
$\Theta(\log n)$
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Q2.
[Linear Data Structures (Arrays, Stacks, Queues) Concept 8] What is the worst-case time complexity of building a max-heap of $n$ elements from an arbitrary unsorted array using the bottom-up `Build-Heap` procedure?

(A)
$\Theta(n)$
(B)
$\Theta(n \log n)$
(C)
$\Theta(n^2)$
(D)
$\Theta(\log n)$
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