Data Structures and Algorithms-I MCQs

Page No. 3

Which node has the lowest priority in a treap?


aroot node


bleaf node


cnull node


dcentre node


View Answer root node

What is the average running time of a treap?


aO(N)


bO(N log N)


cO(log N)


dO(M log N)


View Answer O(log N)

Several other operations like union set difference and intersection can be done in treaps.


aTrue


bFalse


ceither true either false


dNone of the mentioned


View Answer True

What is the condition for priority of a node in a treap?


aa node’s priority should be greater than its parent


ba node’s priority should be at least as large as its parent


cthe priority is randomly assigned and can have any value


da node’s priority is always given in decreasing order



What is the reason behind the simplicity of a treap?


aEach node has data and a pointer


bEach node is colored accordingly


cIt is a binary search tree following heap principles


dEach node has a fixed priority field



Which is the simplest of all binary search trees?


aAVL tree


bTreap


cSplay tree


dBinary heap


View Answer Treap

A treap is a combination of a tree and a heap.


aTrue


bFalse


ceither true either false


dNone of the mentioned


View Answer True

What is the space complexity of a treap algorithm?


aO(N)


bO(log N)


cO(log N)


dO(2N)


View Answer O(N)

What are double and single threaded trees?


awhen both left, right nodes are having null pointers and only right node is null pointer respectively


bhaving 2 and 1 node


cusing single and double linked lists


dusing heaps and priority queues



Which of the following tree traversals work if the null left pointer pointing to the predecessor and null right pointer pointing to the successor in a binary tree?


ainorder, postorder, preorder traversals


binorder


cpostorder


dpreorder



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