Gave one contest and tada...

Lately i have been seeing a lot of post regarding how i reached xyz in xyz time lmao .who wants to know that bruh ? Stop bragging mate .if you got to candidate master in xyz time try to become a master then rather than bragging .Stay safe and don't get FSTed.Bye

I am back after a very long time ,3 months i guess ,i am newbie now and i am going to become specialist in 2 months. UPVOTE this blog so i see it everyday

i had a doubt on this https://codeforces.me/contest/1580/problem/C Problem ,i read the editorial but couldn't understand one line My doubt is when x+y> root(m) we can see all the maintenance days ,but what to do when it is less than root(m)? Thanks

P.S. please don't downvote as it results in blog not showing up after a couple of downvotes .if you don't wanna upvote ,it's fine but downvoting it would result in me not getting my doubt solved .

https://codeforces.me/contest/1580/problem/A

In this problem i know the brute force which will be (400)^4 which will give tle for sure.can anyone tell me some better approach for this by which it can be solved in the given time limit

https://codeforces.me/contest/1581/problem/A

what is the logic ?? i just know the ans is (2*n)!/2 ,but how ?

I am noob in cp and want to start with cf .anyone who gives me advise on how to start cf,i will pray he gets 5 wives/husbands/others