I read Stroustrup's book from beginning to end (which is easy), although now it's all covered in dust, and I'm learning mathematics for data analysis.
I think it's time to repeat the syntax to maintain the image :)

hmm... but once upon a time I knew the C++ syntax, that's what Python does with people :)

strange, could you clarify in what programming language you wrote this, 0.5 as a float should be stored without data loss (forgive me in advance, I’m writing through a translator, because I’m still too lazy to learn English grammar :) )

why is it not in the first place? :)

the map shows an illustration of collinearity , there is also a link to the article , as for the difficulty level , that it cannot be changed after the publication of the kata

I will write as a person who solved this problem without creating a new list, English is not my first language, but it seems to me that the condition needs to be changed, since the list of functions is not clear in advance. The whole kata is quite interesting (especially if you solve it without a new array :)) but it seems to me rather ridiculous to exclude list() leaving [] they do not affect the performance of the code in any way and are essentially a matter of taste.

I really liked this task, but it would not be superfluous to clarify that there are no two pairs in which the second element is the same.

Well, what can I say... today I found out that flags in the discussion of solutions are not useless (and yes, I've been here for a year) :)

What is this supposed to mean?

Thank you for your observation

thank you very much