I have been facing a problem since last 1-2 months. Whenever I copy a solution by clicking "Copy" from a submission page and then submit the same solution (or after some edit), I am getting
The compilation message is like
Can't compile file: program.cpp:3:1: error: stray '\302' in program Â ^
Example, I copied this 59853141 submission which verdict is
After submitting this code, the submission 59853172 is getting
I hope, the Codeforces authority will take care about that issue.
UPD: The bug is fixed now.