The problem is that static preserves i across every call to replaceNth. It's only assigned 0 at compile time. After that each iteration updates the value. So if you're only running this once then it'll behave as you intended. After that first pass it's anyone's guess as to what the starting value will be. Remove static, move the declaration outside the lambda, and change the capture from [=] to [&]. It'll work fine then.

Fixed

Kata dificulty is relative to your knowledge and experience. For example before I did my first graph problems I thought it was difficult, after a few then not so much. If you've done ASCII operations before of course it is easy.

Yeah, this was definitely an 8 kyu challenge.

Gern geschehen! Danke, dass du mich auf den Fehler aufmerksam gemacht hast! :-)

I just tested it, the issue is fixed. Thank you, @HerrWert.

@siebenschlaefer, do you not have write access because you've contributed to this kata? :-)

https://www.codewars.com/kata/pole-vault-starting-marks/edit

OK, thanks for that tip. I just added that line above the tests. I placed it directly above another #include statement. Please let me know if that works.

@Dentzil, @HerrWert or anybody else with write access:
Just put the line

#include <cmath>

on top of the tests.

Works now;-)! Many thanks for your correction!

Oh, sorry, now it's correct.

Hi @Dentzil, are you sure?
Should be:

std::string expected = "8,8,FALSE";
std::string actual = calculateArray("5;10");

...but it's still "7,7,FALSE"?

Hi @masterridley and @smile67,

it shoud be fixed now.

The average value is rounded now to the nearest int according to the description.