I have the same problem

Hard to tell only based on Passed/Failed report.
The tests and final submission often use different tests, with the final submission ones being more extensive.
So you most likely have a problem with you algorithm that is not apparent in the simpler tests.
(Just noticed your comment is from 8 months ago, but I'm posting the reply anyway lol)

Indicate whether the algorithm can be O(n^3) or if it must be, at worst, O(n^2). The O(n^2) situation warrants this kata being at most 5 kyu.

this is my first exercise, thank you for your time and work.

so... I had a problem here.

All the tests passed when I run the tests, but the last one fail when I submit.

Running tests
Test Passed: Value == 1
Test Passed: Value == 2
Test Passed: Value == 2
Test Passed: Value == 2
Test Passed: Value == 4
Test Passed: Value == 9
6 Passed
0 Failed
0 Errors

When I submit
Test Passed: Value == 1
Test Passed: Value == 2
Test Passed: Value == 2
Test Passed: Value == 2
Test Passed: Value == 4
Test Passed: Value == 9
Expected: 1, instead got: 9
6 Passed
1 Failed
0 Errors
Process took 74ms to complete

What is the problem?