Nice coding challenge of the series as well, it takes a while to figure this one out.

Python new test framework should be used

Range of inputs should be specified

updated

Ruby 3.0 should be enabled, see this to learn how to do it

Fixed

Ruby random tests are raising errors by itself:

main.rb:21:in `s0lver': private method `select' called for nil:NilClass (NoMethodError)
	from main.rb:51:in `block (2 levels) in <main>'
	from main.rb:46:in `times'
	from main.rb:46:in `block in <main>'
	from /runner/frameworks/ruby/cw-2.rb:55:in `block in describe'
	from /runner/frameworks/ruby/cw-2.rb:46:in `measure'
	from /runner/frameworks/ruby/cw-2.rb:51:in `describe'
	from main.rb:17:in `<main>'

Well..

Your solutions should be returned as lists inside a list in ascending order of the first item.

What if two sequences have the same first element?

The description says 'all possible', so return all in ascending order.

What if 2 arithmetic progression have the same start? Should we return only the first or both? And in which order?
I have seen nothing in description about this.

Thank you for the heads up :-)

Thanks for the approval

There are 95 random tests, and that should fit well in the time limit. Check your algorithm

Just a quick question - how many 'random' tests are there? I've up to 33 tests passed only for the overall to fail due it breaching the 12s boundary. Now this is my first python code snippet, but I figure if the algorithm works well enough to pass all the tests it reaches, maybe something needs to be added to the description covering the time requirements? Or is it possible that I'm getting too many random tests?

Cheers
Kevin

Ruby tanslation kumited -- please check and approve