> even a number-crunching monolith written in high-performance C++ needs to communicate its result to the user or some other remote service. How many lines of c

> even a number-crunching monolith written in high-performance C++ needs to communicate its result to the user or some other remote service. How many lines of code to do that? I usually output json if the output is hierarchical, or some simple size+block format if it is just fixed size column data.