This is literally me when I started coding.
Comments:)

wow bit shifting so clever

if you are wondering why i calculate some abstract "len", its cause i am sleep deprived RIGHT NOW, but you know...
C AIN'T WAITING

The String.split(String s) splits the string into an array of strings in places where there is s in the original string. So you have something like "hello world!", and if you do "hello world!".split(" ") it will split the string into an array like this:{"hello", "world!"}
Then with the [0] he is accessing the first element of the array. 0 is the first element in Java and you access array elements by an index with square brackets, remember!

Thanks for your explanation.

I saw the comment, but I forgot the size is specified in the declaration, so I basically was like "you give me an array, but the memory is not allocated yet", which is wrong, thanks!

I am doing codewars fundamentals only right now, in between reading "The C Programming Language", and I am only on chapter 2, so yeah I know nothing about how all this stuff works.

bruh. its not specified so i calculated the size and allocted that much with malloc

are you dynamically adding more space to the array with the *integers++?

Базар брааза

Glanced over, and yes its the same algorithm. Yet it still looks better than my stuff lol

I had to implement addition by columns like in first grade, you know? For this to work...

Is this code the same type of thinking or what? Cause I don't feel like looking up libs you used

Had to implement fucking column addition for this to work, just like you.

This is torture. This problem wants me to implement an algorithm of summing that we did in first grade :)

If only you smarter fellas documented your code. THe world would be perfect. :/