Comments

Thanks

I think Mike doesn't like favoritism at all. This is all about practice.

Ok brother

What about algorithmic problem?

I am not bad at math. But I can't do well during the contest.

Me too. But needs a lot of practice.

I've seen it. but don't get it.

Sorry sir. I don't understand what you mean.

This method doesn't even work for 10^8 within 10 seconds. It takes a lot of iteration. It takes 22222348 checks. Any other approach?

what about for 10^18?

Got it.

Yap. But when I tried it on my computer, it showed different results.

Thanks

I think so