I see now, thank you very much for your explanation, fellow comrade!

this kata has an error in the test cases : main.cpp:195:45: error: reference to 'data' is ambiguous;

Dude, I think that the tests are broken, idk why but when i submit it is showing me this kind of error: reference to 'data' is ambiguous
assertFuzzyEquals(Rainfall::mean("London", data), if I am wrong please help me understand where is the issue.

From my point of view this kata has a problem with the random test. Idk why but in the end of the input string there is a comma(','), and I am not sure that it should be there. At least you shoud write in the description that there is some king of test idk. But for me it was kinda sketchy to realize that this is the problem of why my code was failing.

hello there! Can you explain to me how did you come out with that pattern? How did you figured out which light to turn off and in what order ?

hello there! Can you explain to me how did you come out with that pattern ? (i mean the one stored in the array solver).

thank you mister !

hello there! when is gonna be this kata available for c++ wizards like me ?