Data Structures Algorithms-II MCQs

Page No. 112

Given a string, you have to find the minimum number of characters to be inserted in the string so that the string becomes a palindrome. Which of the following methods can be used to solve the problem?


aGreedy algorithm


bRecursion


cDynamic programming


dBoth recursion and dynamic programming



What is the space complexity of the following dynamic programming implementation of the maximum sum rectangle problem?


aO(row*col)


bO(row)


cO(col)


dO(row*col*col)


View Answer O(row)

What is the time complexity of the following dynamic programming implementation of the maximum sum rectangle problem?


aO(row*col)


bO(row)


c O(col)


dO(row*col*col)


View Answer O(row*col*col)

Which of the following lines should be inserted to complete the above code?


a val = mx_sm


breturn val


cmx_sm = val


dreturn mx_sm


View Answer mx_sm = val

The dynamic programming implementation of the maximum sum rectangle problem uses which of the following algorithm?


aHirschberg’s algorithm


bNeedleman-Wunsch algorithm


cKadane’s algorithm


dWagner Fischer algorithm


View Answer Kadane’s algorithm

What is the time complexity of the brute force implementation of the maximum sum rectangle problem?


aO(n)


bO(n2)


cO(n3)


d O(n4)


View Answer O(n4)

Consider the 3×3 matrix {{2,1,-3},{6,3,4},{-2,3,0}}. What is the sum of the elements of the maximum sum rectangle?


a13


b16


c14


d19


View Answer 14

Consider the 2×2 matrix {{-1,-2},{-3,-4}}. What is the sum of elements of the maximum sum rectangle?


a0


b-1


c -7


d-12


View Answer -1

Consider the 2×3 matrix {{1,2,3},{1,2,3}}. What is the sum of elements of the maximum sum rectangle?


a3


b6


c12


d8


View Answer 12

Consider a matrix in which all the elements are non-zero(at least one positive and at least one negative element). In this case, the sum of the elements of the maximum sum rectangle cannot be zero.


ature


bFalse


cA & B


d None of these


View Answer ture

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