Nope))
Unfortunately, this code is neither efficient nor clean.
As far as performance is concerned method contains has a high cost when you are dealing with a list.
A possible remedy to this problem: maintain a set of values that are already seen, which will improve time complexity but requires additional space as well
(if you want to see an example look at my fork to this solution).

Thanks, i understood. As always my eng still not good

it's in the title: consecutive numbers. ;p

I don't understand why 48 return only 2. We also can // 20 + 24 + 4 and etc.

Why? Its still O(n).

So sloooooow

Very good solution. Program too fast

Good for reading, bad for perfomance

Good for reading, but bad for perfomance.

Nice tests!)
ratio = 4:3, width = 574 expected:<574x4[30]> but was:<574x4[29]>