Good :) Now you know you need to find a radically different approach. Maybe it's better to focus more on the representation that on the number.

Julia translation

I think that with that input, it will take a long time to be solved...

I tried with the input 123416523 and it took (37.97 secs, 74,454,731,984 bytes) to get the solution, which by the way is: 68961984

I see that this problem has exponential time to be solved, related to how big the input is...

• For example:
  • if the input is 12341652, it takes (3.81 secs, 6,917,976,752 bytes), but
  • an input which is one digit greater (fo example: 123416523) makes the solution time to go to (37.97 secs, 74,454,731,984 bytes)

We don't know what you are doing.

Maybe the random test are wrong or only I

If you don't know, why raise an issue?

All the random tests in Python (I assume you are using this language) just do this :

            test.assert_equals(nines(n), reference_solution(n), f"With n = {n}")

Just like fixed tests do stuff like this

        test.assert_equals(nines(3950), 1035, "With n = 3950")

Please be more specific, and however don't raise issues if you don't know.

Bruh this one this entirly broke first i get a error in rust thats not from my code "called Option::unwrap() on a None value at src/lib.rs:6:29"
and in python i get Execution Timed Out (12000 ms) please fix it.
both passes test but not in attempt

6kyu 4Head 4Head 4Head

Nah, im too dumb to solve this. Some kind of math problem. xD

up to 100 you have: 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99... so there are 19 number with at least one 9....

How long does it take on your other platform to compute the result for input 123416523412365217623567890987654321?

Same issue here... I can run the code on other platform and it works just fine, but I get the timeout error here... I think that the issue is for big numbers, because it takes more than 12 seconds to get the solution. :(

Asked a mathemetician and google for a formula for this, both had no clue. HOW IS THIS ONLY 6 KYU???

Guys, if you find how to deal with this error, mention here plz

i have same error. I dont know way to solve this :)