https://www.codechef.com/viewsolution/71664599 https://www.codechef.com/viewsolution/71649892 https://www.codechef.com/viewsolution/71637434 https://www.codechef.com/viewsolution/71638559 https://www.codechef.com/viewsolution/71638559 just randomly selected some Indian account solutions from the top 20 (codechef starters 52: DIV 2)

Why would anyone give contests on codechef if this is a regular practice? I noticed masssive cheating and didn't give last 2 3 contests there. But today I saw this. Should I give contests there or is it just a waste of time (& demotivating too)?