Hello, Codeforces!
After I had created a script named 'input copier' Mike added copy button to codeforces. :')
But he missed that he did not add copy button to output so here I am with another script!
This script copies 'Copy' button to output.
Installation:
Tampermonkey or Violentmonkey or any other open source userscript manager is required. The source is available in Greasy Fork: Output Copier
Tampermonkey extension: Tampermonkey
Violentmonkey extension: Chrome | Mozilla Firefox | Opera