Q. What operation is supported in constant time by the doubly linked list, but not by the singly linked list?

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Q. How much extra space is used by heap sort?

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Q. Binary search algorithm employs the strategy of

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Q. Dangling-else ambiguity can be eliminated by

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Q. If n represents the dimension of cube and K, the radix (no. of nodes along each dimensions) then the number of nodes N of a k-ary n-cube network is:

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Q. The postfix form of the expression (A+B)*C-D/E is:

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Q. The number of nodes in a complete binary tree of height n:

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Q. Data abstraction means:

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Q. The solution of recurrence relation:

T(n) = 2T(sqrt(n)) + lg (n)

is

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Q. The elements 42,25,30,40,22,35,26 are inserted one by one in the given order into a max-heap. The resultant max-heap is sorted in an array implementation as

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Q. Consider the following postfix expression with single digit operands:

623∗/42∗+68∗−

The top two elements of the stack after the second ∗ is evaluated, are:

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Q. A binary search tree is constructed by inserting the following numbers in order:

60, 25, 72, 15, 30, 68, 101, 13, 18, 47, 70, 34

The number of nodes in the left subtree is

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Q. In a ternary tree, the number of internal nodes of degree 1, 2, and 3 is 4, 3, and 3 respectively. The number of leaf nodes in the ternary tree is

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Q. Match List-I with List-II and choose the correct answer from the code given below:

List I (Graph Algorithm) List II (Time Complexity)
(a) Dijkstra’s algorithm (i) O(E lg E)
(b) Kruskal’s algorithm (ii) Θ(V3)
(c) Floyd-Warshall algorithm (iii) O(V2)
(d) Topological sorting (iv) Θ(V+E)

where V and E are the number of vertices and edges in graph respectively.

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Q. In K-coloring of an undirected graph G=(V,E) is a function. c:V→{0,1,…,K−1} such that c(u)≠c(v) for every edge (u,v)∈E.

Which of the following is not correct?

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Q. Consider a singly linked list. What is the worst case time complexity of the best-known algorithm to delete the node a, pointer to this node is q, from the list?

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Q. The second smallest of n elements can be found with ............... comparisons in the worst case.

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Q. Consider the following statements related to AND-OR Search algorithm.

S1: A solution is a subtree that has a goal node at every leaf.
S2: OR nodes are analogous to the branching in a deterministic environment.
S3: AND nodes are analogous to the branching in a non-deterministic environment.

Which of the following is true referencing the above statements?

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Q. The solution of the recurrence relation
T(m) = T(3m/4) + 1 is:

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Q. Consider the array A=<4, 1, 3, 2, 16, 9, 10, 14, 8, 7>. After building heap from the array A, the depth of the heap and the right child of max-heap are .............. and .................. respectively. (Root is at level 0).

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