OP solved it, closing

Oh on second time i did it.

I have no idea why this works. My math is subpar, so I can't really explain, but it this is definitely way above my level.

very fun!Good job!

Let's entertain the possibility that it's too difficult and that a simple loop should work. Well then, we might as well delete the kata, because there's nothing left of it.

If a 6-year-old can figure it out, then so could they. It isn't hard for someone with semi-functional brain at all. If it is, maybe they're in the wrong place.

This is by definition optimization and not something for absolute beginners. It really is a simple solution, but this would stump beginners who haven't been exposed to that.

Edit- Look at all the comments made by 7kyu coders who don't understand why their code is timing out, and the responses. "Find a faster algoritm." "The kata is tagged performance for a reason."

This really is a little hard on the new coders. Simple doesn't mean for absolute beginners.

I have to agree, it's not even "optimisation" its like year 6 maths.

I'm actually tempted to argue that the "optimised" solution is actually easier than doing it some slower way, as well.

That depends on the values tested.

I get Timeout Error but when i test my code,it will be passed.