Open letter to students with homework problems — user7 59 secs ago

Stack Overflow is a question and answer site for professional and enthusiast programmers. There are other sites in the SE network better suited for this kind of questions. — James Brown 16 secs ago

Please also read Under what circumstances may I add "urgent" or other similar phrases to my question, in order to obtain faster answers? and Open letter to students with homework problems — Federico klez Culloca 37 secs ago

Cross-site duplicate of Is a function immediately impure if it takes a function as a parameter? — Bergi 5 secs ago

Stackoverflow is more centered around concrete problems/questions rather than discussions around how a problem could be implemented with a programming paradigm. I'd suggest softwareengineering.stackexchange.com for such questions. Still the scope of what you ask is quite large to address here. — Alper 45 secs ago

Open letter to students with homework problems and How to ask homework questions: Make a genuine attempt yourself, show your code, ask a specific question. — kaylum 7 secs ago