Hello, codeforces! I want to ask some questions about codeforces and polygon (I make tasks on polygon):
Can I do so, that solutions, which fall on the first test, will not be counted in table?
Can I add pretests and hacks to my contests?
Can I add deferred publication to my blog (for example for editorial)?
Can I somehow copy some contest so, that I would be able to edit condition?
Can I add score for tasks?