As a beginner, I face lots of difficulties thinking a program recursively. After thinking for a while, I can tell the output of a recursive function but when I try to write a program recursively on my own, my head gets messy and I can't think properly after some time. I want to know how to think a program recursively in an intuitive way so that I can write a recursive program without thinking recursive tree or call stack every time. How do you think when you write a complex recursive solution?

Hi codeforces

Today I found out that my solution for problem C last contest is skipped due to similarity with some other people , and this is really annoying because I am not a cheater

The code is really simple ( here is mine 200006570 and all problems in this contest and Codeforces Round 862 (Div. 2)) and that's why any person.

I didn't share my code with any person and I didn't use ideone or any other online compiler

You can look in my account and see that I was never a cheater and I am a person who wants to improve and doesn't really care about the rating

CODEFORCES was and always will be a fair place , but it's not fair that I get a skipped and some people who really cheat don't get it

That's why I ask MikeMirzayanov for help and to get my rating back

Or at least remove the skipped because I am not a cheater

I want to know why my code is skipped In contest after adding the new rate the contest is finished one week ago