My friends or relatives generally ask me for helping them to do their homework etc. If I have time, I try to help them. Helping people makes me peaceful, it is like contributing sth to an open-source community 🙂 I have decided to share these materials here for people who need the same or similar things. It is the first post of this series 🙂
About function parameters; these function are getting a number as input, return 1 as output if the number is kaprekar or factorion, otherwise 0 as output.