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MCQ

In a binary search tree, which of the following traversals would print the numbers in the ascending order?

Level-order traversal

Pre-order traversal

Post-order traversal

In-order traversal

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MCQ

Consider the following nested representation of binary trees indicates y and z are the left right subtrees, respectively, of node x. Note that y and z may be NULL or further nested. Which of the following represents a valid binary tree?

(1(234)(567)

(1 2(4 5 6 7))

(1(2 3 NULL)(4 5))

1((2 3 NULL)4 5 6)7)

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MCQ

The pre-order and post order traversal of a Binary Tree generates the same output. The tree can have maximum

Three nodes

Two nodes

One node

Any number of nodes

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MCQ

Worst case time complexity of binary search is ______________

O(n)

O(logn)

?(nlogn)

?(logn)

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MCQ

Which of the following is correct with respect to binary trees?

Let T be a binary tree. For every k ? 0, there are no more than 2k nodes in level k

Let T be a binary tree with ? levels. Then T has no more than 2?

Let T be a binary tree with N nodes. Then the number of levels is at least ceil(log (N + 1))

All of the mentioned

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MCQ

The in-order traversal of a binary tree is HFIEJGZ, and the post-order traversal of the same tree is HIFJZGE. What will be the total number of nodes in the left sub tree of the given tree? (It is NOT a search tree)

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Hash based structures

Graphs

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