same solution

Oh I see now. I was confused because I thought you were checking for duplicates in the set, which wouldn't make sense. Thanks for your help!

Imagine someone is having two last names like it's normal in hispanic cultures. The code only works within the limitations of the exercise requirements.

It's guaranteed that each string is composed of two words

Samuel L Deerson

me too

Ah yes, the new 54421 character line length convention

JS needs random tests ;)

I just finished the kata and yes the largest number is smaller than 4000, as it would not be possible to build it with the given rules

The details specified are sufficient to solve the problem here ... test your solution and see if it passes the test cases!

What's the largest number to convert? is it in the range(1, 4000)? Because for larger numbers "M" is not sufficient...

I completely agree. I found the wording confusing. I did not know if I was to increment and decrement an element outside of the stack.