Here you sort ALL the 50 millions element and after you had to compare the digit (not linear for sur).

But all you have to do is to look element by element and find the first one who is not asc (linear).

Sorry for my english

perfect

Probably it's the most fastet solution. Can you explain please why do you think that this solution is slow?

test on a list of len 50 millions

your decision took time: 2.390636682510376

supposedly slow decision took time: 1661070264.348622

your decision longer on 1.7343978881835938

slower than necessery, and you kind of loose all the interest of the kata ?

I doubt any 7-kyu user cares about that. Might be an issue in production, though.

shot but slow

concise, easy to understand, but asymptotically slow (N log N vs N)

classe

Did you ever figure it out? Could you possibly explain it to the rest of us what this problem is asking for?

You aren't getting false instances. Take a look at the words closely. There is a twist to the kata.

I'm trying this in python and am having trouble getting the learned words list to clear in between test cases. As a result I return false instances of 'already know this word' when the list should have been cleared. Can anyone point me in the right direction to get the list cleared inbetween test cases?

I'm using python and cannot figure out how to get the list i'm using to store the words when the add word function is called and as a result I keep getting false Trues when the list should have been reset for the next test case. Can anyone plesae give me a tip as to how I would clear the list in between test cases so I don't return false positives?

You are not misunderstanding the ask. In which language you're coding?

If I understand the challenge - we want to return how many cubes would not be visible. So for example in the test case of 4 there are 64 blocks (4 width X 4 height X 4 deep) and 8 of those cubes would fall in the interior not visible from the outside. If that is accurate I'm getting an error on the test case of 15 - the test case said I should get an answer of 27, which is way too low for a 15 X 15 X 15 cube.

Can anyone help me understand where I am misunderstanding the ask?