I was wondering how many procedures does the IOI Server processes in a second, compared to Codeforces Server and is there any reference for that?

Thanks in advance

InfoCup 2018 will be held in 4th March, and I was searching for 2017 problems to practice. I found them here but I didn't find where to submit. anyone knows if there's an online judge to submit?

As I recently have started interacting and contributing with codeforces community I read too many funny comments that made me really laugh. Share with us your funniest comment or blog on codeforces in 2017.

For me it was in this comment in this blog What are the things that you discovered independently?

and in this blog The holidays comes to us! Gifts! for MikeMirzayanov XD

Recently I've been reading about persistent segment tree and I've solved the sample problem that they gave me. Can someone give me some problems about this algorithm and thanks.

If you want to learn it you can see this blog persistent segment tree.

Hello CF community ..

recently I found hard DP problems that I can't solve without learning the simple form of DP iterative .. So can anyone give me some easy DP iterative problems ...

Hello Codeforces:

I used to open the contests list and see contests are starting after at least three days, But the last three days contests were just appearing before one day from starting.

I hope you can announce before at least two days so we can organize our time to participate . . .
And thanks ^_^