I have solved every question by my own. I dont know on what basis you have sent me this mail and reduced my rating on the platform.
There are thousands of submission of a code there is a chance that the code of two preson can match. This don’t means they have cheated .
Kindly give my rating back to me. And check 100 times before sending this kind of mail and reducing rating .
It takes time to build rating on a platform.