Multiple of all elements in an array except one at particular index.
For example
Array A = 1,2,3,4
We know to store in other arrayy B at index 2 the product of all elements except at index 2.
B= [, , 8, ]
Same for all index of B to fill

Question

Multiple of all elements in an array except one at particular index.
For example 
Array A = 1,2,3,4
We know to store in other arrayy B at index 2 the product of all elements except at index 2.
B= [,  , 8, ]
Same for all index of B to fill

Anonymous · Accepted Answer

First i started brute force using for loops.
Then he gave me hint which triggered my brain i just said we will first multiple all elements of array and just divde it by respective index number.
Like if we multiply elements of A we will get 1*2*3*4=24
B[0]=24/A[0]=24/1=24
B[1]= 24/A[1]= 24/2=12 which is equalnt to multiple of all elements of array A except 2 which is at index 2nd.

Note :- i didnt have experience of DSA thatswhy for me it might be difficult.
If u r good at coding thn its cake of walk
u can easily grab 12lpa .
For 5lpa loops questions 
For 8lpa,12lpa trees and graphs.

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