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What is the time complexity of the fastest known matrix multiplication algorithm?(a) O(n^log7)(b) O(n^2.37)(c) O(n^3)(d) O(n!)This question was addressed to me during an interview.I need to ask this question from Recursion topic in division Recursion of Data Structures & Algorithms II

Answer»

The correct choice is (b) O(n^2.37)

To explain: The Coppersmith-Winograd ALGORITHM MULTIPLIES the MATRICES in O(n^2.37) time. Several IMPROVEMENTS have been MADE in the algorithm since 2010.



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