A flowchart describes the steps software takes to process information, from the beginning data inputs, through processing and logical decisions, to the point where the program ends.

In modern programming, it's uncommon to see functions longer than around 100 lines of code, because by then, there's probably something that should be pulled out and made into its own function.

M4N asks:. Is there a reason why functions in most(?) programming languages are designed to support any number of input parameters but only one return value?