👉 Reverse ways is a concept in mathematics and computer science, used to describe situations where an algorithm or program can be executed in reverse order. This means that the output of one step in the computation can be directly followed by another step without any intermediate steps.
For example, consider a program that calculates the factorial of a number. If we start with 5 (which is 120), and then multiply it by itself three times (5
4
3 = 60),