Duplicate suggestion below

what's some of the techniques you used?

Niether of those method should work, I'm not closing this issue because I can see that your solution passes the test(which it shouldn't)

1. That depends on the runner, some languages have that already, like javascript.
2. You have to actually solve the kata in that language to see the solutions. Otherwise, you'd have the same level in all languages because you could submit a solution that's not yours as if it were.

From 40k solutions, I assume that the problem should be from your code :)