done

The last two sample tests need to be changed :

n_vals = [[1, 0], [2, 3], [3, 18], [4, 60], [5, 150], [342, **420115062**], [56753, **386209565**]]

Example tests are still wrong.

Wow, that's the most beautiful comment I've ever had here. Congrats on solving; most would just give up on your situation. I'm really happy that someone would put such effort into something I created.

Personally, I've also been struggling for time due to college; I'm looking forward to reaching 1dan, but my time here is inversely proportional to the time spent studying for tests, and this semester hasn't been kind to me.

I hope you keep up with your training too; it's nice to have someone to race against in the leaderboards. I kind of don't want to pass you just yet, lol. Well, anyways, good luck with your tests and codewars, if you have time for it, that is.

Think about string

Such feature is already there, moderators can hide submitted solutions. And yes, this function is used to handle spoilers. But such spoiler solution has to be reported first, so mods know what to hide :)

hidden.

possibly make it a feature to hide solutions after submitting?

'won't happen. The first use of it would be copycats trying to hide the fact they are cheating.

It should be rather OK to approve if the feedback from solvers is clear. Satisfaction votes ar unanimous at 100% which is great, but rank votes seem to be not that uniform.

thank you!

s contains 2 electrons, p has 6, while d can hold 10. 3d has a higher energy state than 4s, so 4s gets filled first, then goes 3d. Are you referring to this? I think the kata simplified this to avoid using the (s + 0.7 * l) formula. (If I correctly remember this thing from my middle school chemistry class.

Thanks!

Jperm was great, but I can't say I prefer one over the other. If only people could exist as two beings at the same time...