Q. Consider the following statements for priority queue:

S1: It is a data structure in which the intrinsic ordering of the elements does determine the result of its basic operations.
S2: The elements of a priority queue may be complex structures that are ordered on one or several fields.

Which of the following is correct?

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Q. Give as good a big-O estimate as possible for the following functions:

(nlogn+n^2)(n^3+2) and (n!+2^n)(n^3+log(n^2+ 1))

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Q. In any n-element heap, the number of nodes of height h is

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Q. A vertex cover of an undirected graph G(V, E) is a subset V1 ⊆ V vertices such that

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Q. Suppose you want to delete the name that occurs before “Vivek” in an alphabetical listing. Which of the following data structures shall be most efficient for this operation?

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Q. The postfix expression AB+CD–* can be evaluated using a

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Q. The post order traversal of a binary tree is DEBFCA. Find out the preorder traversal.

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Q. The number of colours required to properly colour the vertices of every planer graph is

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Q. A binary search tree is a binary tree :

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Q. The Inorder traversal of the tree will yield a sorted listing of elements of tree in

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Q. Which of the following data structure is linear type ?

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Q. To represent hierarchical relationship between elements, which data structure is suitable?

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Q. Consider the following pseudo code segment :

K:=0
 for i1:= l to n
  for i2:= 1 to i1
   :
   :
   :
    for im:= 1 to im–1
     K:= K+1

The value of K after the execution of this code shall be

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Q. Number of binary trees formed with 5 nodes are

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Q. The following postfix expression is evaluated using a stack

823^/23* + 51* –

The top two elements of the stack after first * is evaluated

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Q. Consider the following pseudo-code :

If (A > B) and (C > D) then
A = A + 1
B = B + 1
Endif

The cyclomatic complexity of the pseudo-code is

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Q. Match the following with respect to java.util.* class methods :

(a) Bit Set                      (i) Time zone getTimezone( )
(b) Calendar                 (ii) int hashcode( )
(c) Time zone               (iii) int nextInt( )
(d) Random                  (iv) Void setID(String tzName)

      (a)     (b)    (c)   (d)

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Q. Which of the following data structure is Non-linear type?

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Q. The total number of comparisons in a bubble sort is

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Q. Which of the following is a bad example of recursion?

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