I'm in division 3 in codechef and I gave this long challenge after a long time(since I wanted to learn more concepts).I submitted my Watching CPL solution and after like 20 attempts I got AC, and my rank was around 700(in div3).But after one hour I saw my rank went up to 200(approx).I wondered what happened but then I realised someone uploaded a solution to this problem on YouTube which was recieving TLE on a testcase(the comment section was full of it).So just think about it.In a span of 24 hrs(since the video was uploaded),over 500 people cheated. I commented that he must delete the code as it is highly de-moralizing but people defended him saying "they are learning". Dissapointed.