Classical

Data Structures - Abstract Data Types

6:  

An algorithm is made up of 2 modules M1&M2. If order of M1 is f(n) & M2 is g(n) then the order of algorithm is?

A.

max (f(n),g(n))

B.

min (f(n),g(n))

C.

f(n) + g(n)

D.

f(n) X g(n)

 
 

Option: B

Explanation :


7:  

An array of n numbers is given, where n is an even number. The maximum as well as the minimum of these n numbers needs to be determined. Which of the following is TRUE about the number of comparisons needed?

A.

At least 2n-c comparisons, for some constant c, are needed.

B.

At most 1.5n-2 comparisons are needed.

C.

At least nlog2n comparisons are needed.

D.

None of the above.

 
 

Option: B

Explanation :


8:  

The minimum number of comparisons required to determine if an integer appears more than n/2 times in a sorted array of n integers is

A.

Θ(n)

B.

Θ(logn)

C.

Θ(log*n)

D.

Θ(1)

 
 

Option: B

Explanation :

Since it is a sorted array, we can use binary search to identify the position of the first occurence of the given integer in (logn) steps. If at all this integer repeats, its appearance has to be continuous because the array is sorted.




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Syllabus covered in this section is-

  • Abstract data types
  • Algorithms
  • Stacks, Queues
  • Linked Lists
  • Trees, Binary search trees
  • Binary heaps

This Section covers Data Structures Questions Answers using C language .
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