So here are the solutions of two people from my very own college who used to cheat in most of the contest (I can definitely verify that) but never get caught. I am posting two of their solutions where they just changes the variable names and changed some indentation and did NOT get caught in plagiarism. Here:
https://www.codechef.com/viewsolution/16429598
and
https://www.codechef.com/viewsolution/16463682
They even used int in one code and in the other they used long int to pass the MOSS. This kind of behaviour is totally unjust for people who work hard for their rating to rise but such people just cheat and get the spot. Kindly do some justice here @admin @vijju123