Hello!! I want to know about

most popular and most hated blog

moost popular person and most hated person

most popular comment and most hated comment

most popular username ans most hated username

most popular contest and most hated contest

in codeforces.You can suggest some. Thank You.

Hii!! I want to change my username in codeforces,someone can help me how to change it?I can't find option in profile to change username. Thanks in advance!!

Hi!! how can i get t-shirt of any competitive site like codeforces,codeshef,hackereath,atcoder,hackerrank or any other website? I can't come in top 100 in contest.so is there any way or is there any chance to get these t-shirts. Thank You.

hi! Recently I found during hack of 57024850,but though it's take 15 second in testcase t=1,n=1000000000,x=100000000 my hacks fails.

It doesn't take time limit in hacks?? Sorry for my poor English.

Thank You!!

Hi,Today I came across one problem in hackerearth live contest,and I am confused that what is topic of this problem,I don't want solution I just want to which topic is of question.

Question: We have four number p,q,r,s and N<=10000 Where all numbers can be in range from 1 to N. But p<q<r<s so we have to find sum of all possible pair's gdc(p,q,r,s).

Thank you.

Hi!

Today,I want to give Upvote in one blog but bymistake I Downvoted it and now I can't change my Downvote to Upvote. So I think Codeforces give such accsess to change Downvote to Upvote. I request MikeMirzayanov to look at it.

Thank you.