Q. What is sparsity of a matrix?

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Q. What are the advantages of sparse matrices over normal matrices?

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Q. What is the order of a matrix?

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Q. Which of the following property does not hold for matrix multiplication?

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Q. How do you allocate a matrix using a single pointer in C?(r and c are the number of rows and columns respectively)

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Q. If row-major order is used, how is the following matrix stored in memory?
a b c

d e f

g h i

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Q. If column-major order is used, how is the following matrix stored in memory?
a b c

d e f

g h i

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Q. Which of the following are the uses of matrices?

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Q. What is the disadvantage of matrices?

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Q. Matrix A when multiplied with Matrix C gives the Identity matrix I, what is C?

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Q. A program P reads in 500 integers in the range [0..100] exepresenting the scores of 500 students. It then prints the frequency of each score above 50. What would be the best way for P to store the frequencies?

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Q. Which of these best describes an array?

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Q. Consider an array A[20, 10], assume 4 words per memory cell and the base address of array A is 100. What is the address of A[11, 5] ? Assume row major storage.

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Q. Let A[1...n] be an array of n distinct numbers. If i < j and A[i] > A[j], then the pair (i, j) is called an inversion of A. What is the expected number of inversions in any permutation on n elements ?

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Q. Which of the following operations is not O(1) for an array of sorted data. You may assume that array elements are distinct.

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Q. The smallest element of an array's index is called its

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Q. The extra key inserted at the end of the array is called a

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