Given two integer arrays, write a function which can compute the product of first array and save in the second array, except the product of that particular element from first array of same index you currently store in second array.

A = [a(0), a(1), a(2), a(3) ... a(n)]
B = [b(0), b(1), b(2), b(3) ... b(n)]

where

b(0) = a(1) x a(2) x a(3) .... x a(n)
b(1) = a(0) x a(2) x a(3) .... x a(n)
.
.
.
b(n) = a(0) x a(1) x a(2) .... x a(n-1)

Question

Given two integer arrays, write a function which can compute the product of first array and save in the second array, except the product of that particular element from first array of same index you currently store in second array.

A = [a(0), a(1), a(2), a(3) ... a(n)]
B = [b(0), b(1), b(2), b(3) ... b(n)]

where

b(0) = a(1) x a(2) x a(3) .... x a(n)
b(1) = a(0) x a(2) x a(3) .... x a(n)
.
.
.
b(n) = a(0) x a(1) x a(2) .... x a(n-1)

Utilisateur anonyme · Accepted Answer

Take the product of all elements of the first array, and divide it with each element later later as you store in second array. It will run N+N times.

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