In scala, the first and third tests in the main attempt seem odd:

6 7 2 1 9 5 3 4 8
1 9 8 3 4 2 5 6 7
8 5 9 7 6 1 4 2 3
4 2 6 8 5 3 7 9 1
7 1 3 9 2 4 8 5 6
9 6 1 5 3 7 2 8 4
2 8 7 4 1 9 6 3 5
3 4 5 2 8 6 1 7 9 should be valid

4 9 8 2 6 1 3 7 5
7 5 6 3 8 4 2 1 9
6 4 3 1 5 8 7 9 2
5 2 1 7 9 3 8 4 6
9 8 7 4 2 6 5 3 1
2 1 4 9 3 5 6 8 7
3 6 5 8 1 7 9 2 4
8 7 9 6 4 2 1 5 3 should be valid

About 3 - 4 times...? I may have just got lucky though.
Voile: Thanks!

Hello,

thanks for a nice kata! Just a quick comment:
For python, there's no instruction on what to do with '0'... was that deliberate...?
Cheers,

Hey @ChristianECooper,

Thanks for reaching out. I just ran A, B and C though my solution, but only A returns a meaningful sentence.
So...Not sure how to proceed. I'm guessing that perhaps you misunderstood the instructions? Maybe they were somehow confusing. Any suggestions on how to improve them would be welcome!

Aaah. I see. Sorry, I guess I'd completely misread the instructions. I'd somehow got the impression that each person took a unit time (1), and that the numbers in the array were the 'number of people in a given queue' (instead of the time for each person). I get it now. Thanks for the clarification!

Aaah. I see. Sorry, I guess I'd completely misread the instructions. I'd somehow got the impression that each person took a unit time (1), and that the numbers in the array were the 'number of people in a given queue' (instead of the time for each person). I get it now. Thanks for the clarification!

Ah. Yes. Thanks for that!
I've added 2 in the tests, and 1 in the example test cases.

Yup. Thanks again!!

@zebulan,

Not at all! I'm glad someone noticed that it was a duplicate before it left "beta" status.
Also, I'm still fairly new to this so good advice is much appreciated.

Hey, just to follow up: modified it so the initial strings contain numbers that you need to filter out after interleaving.
I hope this would be considered different enough...
Is it ok if I mark this as resolved?

Ah. balls. Thank you for pointing it out!
Hmm... I'll search around to make sure I don't change it to another pre-existing thing. Maybe I'll require that numbers be filtered?
Thanks again.

Ah, yeah. I was thinking you're supposed to trim any residual spaces off. Maybe I'll specify that in the description. Thx.