During the contest, I couldn't submit the solutions for problem A and B. Codeforces said that "You have submitted the same code before" even I haven't submitted any yet. That is confusing and I have also tried to fixed the code but it appeared to pop up the same message that my code is submitted before.
This is what happened :
As you see, there is no submissions in "My submissions" and I don't appear in the ranking also. Then I used another account to submit solutions and it's fine :D.
I want to know what's wrong with this account !!
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Auto comment: topic has been updated by _Diego_ (previous revision, new revision, compare).