Heads up, this is a harder problem. Congratulations on making it here!

Given an array arr of int values and a multiple n, find all values in arr that are multiples of n and return those as a new array containing only their values (in their original order from arr).

HINT: when you create a new array you need to know how many elements it stores. You might need two loops for this problem.

CHALLENGE (difficult): solve this in one line.