programming by permutation造句

This lack of clarity drives others to copy and paste from reference code which is assumed to be correct, but was itself written as a result of programming by permutation.
In some cases where the programmer can logically explain that exactly one out of a small set of variations must work, programming by permutation leads to correct code ( which then can be verified ) and makes it unnecessary to think about the other ( wrong ) variations.
It's difficult to find programming by permutation in a sentence. 用programming by permutation造句挺难的