I viewed the code of Timi66/187299702, shendian304/187337308, they are same with my code, but I also viewed their submission.
Then I found that their codes were skipped: https://mirror.codeforces.com/submissions/shendian304 https://mirror.codeforces.com/submissions/Timi66 
They handed in several copies of codes belonging to different people in a row!
They submit problem A several times, and the code is very diffrent.I think somebody locked the problem and view my code, and copy my code to make me unrated.
There's a talk from system to me:
Attention!
Your solution 187282259 for the problem 1770A significantly coincides with solutions Ling_Cat_/187282259, Timi66/187299702, shendian304/187337308. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://mirror.codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.
I think my contest should be rated as normal.
As you see your submissions weren't skipped as your submission was the first.
But I still didn't get my rating
All haven't got their ratings yet. As cheaters are being removed since a round with prizes, ratings are reverted. Please, remove all newly registered accounts from official standings MikeMirzayanov. They tried to gain extra NEAR coins imo
Well this is not enough proof that you are innocent.
It's still rated for him as he submitted first. What he says makes sense
To avoid a warning, you should obfuscate like what that cheater Mhmd_Bakr did in Div2 #841. An obvious obfuscator PROOF Bizarrely, he is not skipped or banned yet! 186942021