@TopinFrassi Just to elaborate a bit about the complexity, think about the complexity if you do `for (int i : integers) { sum += i; }`,
that's O(n) obviously (looping through each item once. But what if you do
`for (int i : integers) { sum += i; }
for (int i : integers) { otherSum += i; }` (i.e. looping through each item twice?) Is that O(2n) ? How would it be different than
`for (int i : integers) { sum += i; otherSum += i; }` ?
Which, again, is O(n)...