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karatsuba’s algorithm c++

potato brain answered on November 30, 2022 Popularity 5/10 Helpfulness 2/10

answer karatsuba’s algorithm c++

karatsuba’s algorithm c++

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Function karatsuba(X, Y){
	// base case
	If (X < 10 and Y < 10)
		return X*Y;

	// determine the size of numbers
	size = maximum(Length(string(X)), Length(string(Y)))


	// Split X and Y
n = ceil(size/2)
p = power(10,n) // equivalent to 10n
a = floor(X/p)
b = X%p
c = floor(Y/p)
d = Y%p

// Recur until base case
ac = karatsuba(a,c)
bd = karatsuba(b,d)
e = karatsuba(a+c, b+d) - ac - bd
	
	// Return the Multiplication
	return power(10,2*n)*ac + power(10,n)*e + b

}

Popularity 5/10 Helpfulness 2/10 Language cpp

Source: www.codesdope.com

Tags: algorithm c++

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