This kata has no random tests.

if I may answer... with the if-statement you can stop processing earlier when a field is zero. it would be wasted runtime to loop through the hole array, if the result would be zero anyway. this solution is nice for arrays with bigger size

the if loop seems redundant to me, bc result * 0 would make 0 anyways. or are there any other reasons you used this?

Really enjoyed (was frustrated by) this.
Learned about a few different sieves, and figured out how to fine tune the implementation to fit within the time limits.

Really liked this one. Thanks!

what happen to index 0? it will be alwayes 0

Actually IntStream.of() calls Arrays.stream()
From IntStream.java :

<...>
/**
 * Returns a sequential ordered stream whose elements are the specified values.
 *
 * @param values the elements of the new stream
 * @return the new stream
 */
public static IntStream of(int... values) {
    return Arrays.stream(values);
}
<...>

Just finished in Java.

Is this solution better than solution with Arrays.stream()?

Approved

Java translation here

im passing the basic tests but failing the randomTests

Nevermind, read it wrong

Javascript version here. This is not how one does weighted averages. You have to divide your sum by n + 1, not n, as your boss counts twice (as if there were two of them).

Approved, thanks