Data Structures and Algorithms-I MCQs

Page No. 17

An expression tree is a kind of?


aBinary search tree


bFibonacci tree


cBinary tree


dTreap


View Answer Binary tree

What does the other nodes of an expression tree(except leaves) contain?


aonly operands


bonly operators


cboth operands and operators


dexpression


View Answer only operators

A node can have a minimum of one child.


aTrue


bFalse


ceither true either false


dNone of the mentioned


View Answer True

The leaves of an expression tree always contain?


aoperators


boperands


cnull


dexpression


View Answer operands

An array consists of n elements. We want to create a heap using the elements. The time complexity of building a heap will be in order of


aO(n*n*logn)


bO(n*logn)


cO(n*n)


dO(n *logn *logn)


View Answer O(n*logn)

Heap can be used as ________________


aPriority queue


bStack


cA decreasing order array


dNormal Array


View Answer Priority queue

The worst case complexity of deleting any arbitrary node value element from heap is __________


aO(logn)


bO(n)


cO(nlogn)


dO(2n)


View Answer O(logn)

What is the complexity of adding an element to the heap.


aO(log n)


bO(h)


cO(log n) & O(h)


dO(n)


View Answer O(log n) & O(h)

Heap exhibits the property of a binary tree?


aTrue


bFalse


ceither true either false


dNone of the mentioned


View Answer True

In a max-heap, element with the greatest key is always in the which node?


aLeaf node


bFirst node of left sub tree


croot node


dFirst node of right sub tree


View Answer root node

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