The description does not specify that nums will always have one or more numbers.

And it's usually a good practice to check that a value is not zero before dividing something by it.

What is the purpose of the last part? There isn't a case where nums doesn't exist.

my favourite solution so far. Concise but still super readable

hmm clever:)))

Is there anything gained by the first part of the if-expression

v in array[:i]

Thanks for the quick reply mate.
Learning a lot from your comments and solutions, as I'm sure many others are. Keep it up bro. :)

yes, but nothing significant. Here it's more about reducing the typing (no variable declaration)

It is creating a formated string. Here is a good video on the process:

https://www.youtube.com/watch?v=nghuHvKLhJA

#11b35/3qb:0z:vV

it is the tradeoff for using a scrited language. it is almost impossible to do
anything without headers in c.

I feel you bro

I like your answer.it is easy to understand.

Better to add a last dot to the 'sentence', you will avoid an error for the empty given string ;)

Wow, learning new code everyday