I haven't violation any rule. This is so unfair !!!
my code : https://ideone.com/gKFW9k
Mr_Frodo code :https://ideone.com/noHRhU
Tapojit047 code : https://ideone.com/Bt2BYg
these 3 codes are find similar. Although there are not same and These was problem G from last div 4 contest which very easy and standard graph problem. That's why most of the people will what is obvious. But system find it violation of the rules and warn me for blocking my account.
At first glance it really looks like a false positive due to simple solution — I recall a Topcoder div1 round where like 10 solutions in my room looked copypasted.
codeforces plagiarism checker need to be updated.
Hope they fix it
Another reason to decrease the frequency of Div4.
This is totally unfair. I don't even know them.