Wouldn't be nice to have, once in a while, debugging contests on codeforces?
Rules: like a normal contest (old problems can be reused), but you are given a code with some bugs and you have to correct it (you can only submit solutions whose edit distance from the starting code is $$$\leq k$$$).

Hello everyone,
it's annoying to scroll long blogs, such as this, to read the rest of Top section. There are a couple of ways to solve this issue, such as

• adding a button to collapse long blogs
• showing a preview of each blog (maybe the first $$$4000$$$ characters); if you want to read the full blog, you have to open it

Codeforces Round #678 (Div. 2) starts in around 16 hours but the announcement hasn't been published yet. I find it quite weird, since announcements are usually published a bunch of days before the contest. Does anyone have some info about the contest? (e. g. who are the problemsetters?)

One of the things I can't stand while doing cp is encountering problems with circular arrays whose solution is almost identical to the analogous problem with a "normal" array. Circular arrays usually make the solution more tedious to write.
I'm not complaining about problems like 1334C - Круг монстров, that have a "natural" solution with a circular array and turn out to have a quite different solution if the array is linear.
I'm complaining about problems like 1392D - Омкар и Война кроватей and 1328D - Карусель, карусель --- это радость для нас. Let's suppose that the array is linear, the solution is identical! The circular array only adds a bunch of cases.

• Never gonna give you up