tldr should have been up front: "before you rewrite an algorithm from your favorite high-level language to C, check whether the problem really is in the languag

tldr should have been up front: "before you rewrite an algorithm from your favorite high-level language to C, check whether the problem really is in the language or not" In other words, concentrate on algorithm, good code, and learning which library functions are available (which are probably written in C/C++). Good advice for anybody. Conversely, just because it's written in Fortran/C/C++ doesn't mean it's optimal. Same rules apply.