Matrix multiplication. My code is not running.

Question

My matrix multiplication can't produce a correct result.
https://code.sololearn.com/cAAZzAQCrwQu/?ref=app

Answer 1

If you do make the code prettier, and a bit clean it, then you can see the problem. This code in the current state is kind a unreadable.

Answer 2

My matrix lib in C: https://www.github.com/domonkosgyomorey/Mat
My vector lib in C:
https://www.github.com/domonkosgyomorey/Vec
My linear algebra lib in C:
https://www.github.com/domonkosgyomorey/LAL

I think my code is much readable, and you can learn from it