Welcom! Glad it played out well.

@curiouscoder, for some solutions, the time may vary strongly when different clues are provided. Maybe in the 'secret' tests there is a sequence of clues that causes an infinite loop or just takes a long time. Also, if you run the 'Attempt Solution' multiple times - are the resulting times the same?

Yep, I suspected that it might be considered a spoiler. I'd suggest you use some console printing and output the solving times yourself for comparison.

@psv, thank you for the explanation and for the C translation! It was the only language i could solve it in and to add a translation myself, which i really wanted to do.
Forgive me for not asking you directly about the test: i was too carried away with my own translation that just did not think. I'd like to disagree about the importance of a stable benchmark in random tests. Shouldn't it be like: 'Bring it on (as long as it's valid input)!' And if the solution has a sensitivity for input - great, that's where it surfaces.

Thank you, again

@JohanWiltink @gullymiles
[C# translation] (https://www.codewars.com/kumite/59a35e1e9f922b3e420000b0?sel=59a35e1e9f922b3e420000b0) added

@FrankK

C++ translation added

Is the reason somthing i can fix?
edit: got it, sorry:) first time i'm publishing

C++ translation added

YES!!!
Thank you
std::extent instead of sizeof(a)/sizeof(a[0])
Nicely done