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What is the time complexity of matrix multiplied recursively by Strassen’s Method?(a) O(n^log7)(b) O(n^2)(c) O(n^3)(d) O(n!)This question was posed to me during an online exam.This interesting question is from Recursion topic in division Recursion of Data Structures & Algorithms II

Answer»

The correct option is (a) O(n^log7)

The BEST I can EXPLAIN: The time COMPLEXITY of recursive multiplication of two square matrices by Strassen’s Method is found to be O(n^log7) SINCE there are TOTAL 7 recursive calls.



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