I was scrolling down the standings of the last div. 4 (codeforces round 1090) when i saw a strange thing... a newbie who solved A and B in 6 minutes, and thats it... until 30 minutes before the contest ends he suddenly solves all 5 remaining questions, a lot of WA's in tests 1 and this submission with a lot of coments 369765038

Im not affirming this guy is a cheater but it is suspicious