Strassen and large number multiplication implementation - 15/10/2017 22:13 EDT

1) Implement Strassen’s matrix multiplication algorithm. Your program should take

an input variable n (=2k where k is a positive integer, 1≤n≤ 1,024) in the Linux

command line and generate two n*n random integer matrices, A and B. To avoid the

integer overflow, please generate the maximum random integer as

root(maximum integer/n) for each input variable n. Compute A*B using Strassen’s

algorithm and compare the result to the result produced by the standard matrix

multiplication algorithm with O(n3) time complexity. Print the results, if correct. (If

incorrect results are produced, no credit will be given. Your program should work for any

matrices. If it works for specific matrices but doesn’t work for other matrices, no credit

will be given.)

2. Implement Large Integer Multiplication algorithm (image attached). Modify your algorithm so that it divides each n-digit integer into

three smaller integers of n/3 digits. Your programs should take a input variable n(=6k

where k is a positive integer) in the Linux command line and generate two n-digit random

integers (the most significant digit is between 1 and 9, not 0), A and B. Compute A*B

using original algorithm and the algorithm you modified. Please make

sure that you get the same results for the two algorithms. Print the results, if correct. No

credit will be given if the algorithm is incorrectly implemented, the time complexity of

your program is higher than O(n2

), or your program only works for specific k values.

The code should be written in relatively simple constructs(using arrays) and easy to understand so can be explained and understood.

Evner: Algoritme, C programmering, C++ Programmering

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