Found these codes of someone from the recent div3. Looks like he has encoded his code in such a way that its doesnt get detected in the current plagiarism checker. div3F — https://codeforces.me/contest/2036/submission/289567963.
div3E — https://codeforces.me/contest/2036/submission/289541885. Mike please improve the plag detection system so that these kind of stuff gets caught.