i have same issues with golang and expected 0 returns but the retusn actually 23 with that strings s1 bruh

That's a problem with your code, are you using a global var?

C++ Completions 2845

May be it is problem in random generated string in tests

No, because if I put this string in test sample I have expected result 23

If I run the testcase individually, I pass the testcase. But when I run it collectively, it is failing.

Passing test that run when you hit "test" button is just first step of validation of your code, when you hit "attempt" more complex (often random) test cases are run on your code.
So most likely your code doesn't work well in some edge cases.

Strings in Ruby are mutable, maybe that's your problem?

I have a solution(Ruby language), but one test in test suite failed.
I logged text and saw this "wVAPVv0IRsGGmCJiM0teT5F1StS7qqIayzLGQcBp4DPCIKMl0sGquKvEgX4C5oiiFFHTbLT5H4pQxukA9lvCiAVmQjo86LUEP"
It should(according test) returns 0, but in my solution script returns 23(and it is right)
Is it problem in my solution? or something else?

whithout 'bigdecimal' I have NaN when n > 170
will try

nice solution!