Really humorous annotation:)

There are still two test cases behind: "lager_mn", "random_large_mn".

So maybe you failed in some test cases of "large_mn", you can use std::cout in your code to check what params make this.

Hi, I seemed to successfully submit this kata twice in python version and got double score. Also in my completed kata history, there are two same katas named Plants and Zombies.It's this a bug of Codewars? Can anyone explain this, btw, I don't want to be treated as a cheater....Thx, Nice kata still.

oh, my poor English translation....

Fabulous kata ever!

For those who stucked in kernel laplacianFilter test case(C++ version). Here is the hint: if your calculated average sum (float) > 255 , let sum = 255, if pixel < 0, let sum = 0. Really stupid, waste me a lot of time.

Very interesting kata! I almost undervalued this one, but it actually takes me some time to solve! Thx:)

You can google SIGSEGV to find some useful hints.
A SIGSEGV is an error(signal) caused by an invalid memory reference or a segmentation fault. You are probably trying to access an array element out of bounds or trying to use too much memory.
Try to check your code with array.

Thank you~

I know that. In my opinion, when lambda"sum" is used in accumulate, maybe it leads to a problem. Actually code want to assign 0 (the init number) to acc(the integer param in sum), but its function signature is(const char c, int acc), and maybe 0 -> c(the char param), and that's a little bug. You can take a look at the example in the link above. I tried these two verisons, and they all passed the test, so that's my problem.

Perfect solution, I really love it! BTW, I am interested in your Kata Data structure Image. I want to have a look at your struct Image's constructor, since I don't understand how you assign list like {1,2,3,...} to a unsigned * pointer. Would you please give me a hint, Thanks:)

Excellent kata. I learned a lot about how to optimize my code from it! Thanks:)

Thanks a lot!