Codeforces Round #849(DIV 4) Well ,I would like to say that it was a mere coincidence .

1.This problem was based on a simple approach and it is 100% possible that two non-related people can come up with the same pattern of code. 2.Giving the name 's' to a string is very common . 3.Also, the name of other variables are different. 4.Setting a 'flag' to see how we came out of the loop is a common concept practiced by many coders. 5.Using 'break' to come out of the loop when your condition is matched is very general. 6.Also, the difference in submission time is almost 15 minutes.If I would have to copy the code then I would have done it so quickly by changing names of variables. Why would I take so long to think of the solution and code it down. 7.As I was only able to solve 3 questions.I would have copied other two solutions also,as Bilal04 had solved them also.

Lastly, I want to add that this was a pure misunderstanding and should be revised as I am purely innocent in this case.Thanks for reading it .Looking forward for your action.