Very true, I've computed the expected result beforehand now. Thanks again

Thanks for pointing that out. I've made sure to copy the input so it's not passed to both.

Can you elaborate please? I've unpublished in the meantime

Random tests have been added for both scala and js, closing this issue.

Ive unpublished while I write some random js tests. I didnt read the docs as I was following the on screen guidance and I didnt realise there was other reading required. I didn't see from the guided help that random tests were compulsory.

I did search to see if I could see this problem already defined. I couldn't, but if it already exists I'm happy to not republish. The idea is a simplified version of something that recently came up for me at work and I thought it was interesting. I'm sorry if it's not creative enough for you

I've added random tests for the Scala version now, will add some for the JS version and close the issue when done :)