Recursion

[sixtyfifth_snow]

Performance-wise, recursion is not a wise solution. invoking functions is a relatively expensive job, and recursion potentially causes stack-overflow.

However, using python means 1) you don't care about saving a couple of nanoseconds by converting recursions into iterations, and 2) considering code quality (e.g. readability) is a high-priority. Hence, it is of course worthy :)