My 5th original problem, where programming meets chess! XD (Though the idea is from a chess puzzle) : https://mirror.codeforces.com/contestInvitation/e57e48cd98d2b65e46999e8f702e3b962144f85f

Solution code : https://ideone.com/fQ9ZHy

Hope you enjoy solving the puzzle, and coding solution for the same. Thank you!

I'm on a roll of preparing the original problems! check out these : https://mirror.codeforces.com/blog/entry/144152 https://mirror.codeforces.com/blog/entry/144855 https://mirror.codeforces.com/blog/entry/144422 https://mirror.codeforces.com/blog/entry/144935

Hello, what's up ?!

I prepared another problem, but this time, some part of the problem is similar to one on codechef, which I of course came to know later. Anyways : try this -> https://mirror.codeforces.com/contestInvitation/bbf072a86e816262a0c0bb3ed00f595c168d0276.

I hope you will find the problem new! XD

Edit: Solution code : https://ideone.com/hhbkjX

Thank you!

The title is self explanatory, Here's the problem link : https://mirror.codeforces.com/contestInvitation/7a2de3f17076e09f1454e50f400bcf5b1e591d4b Thanks weirdflexbutok,goats_9 for providing idea for the solution.

Edit: Here's the solution code : https://ideone.com/rzP3jW.

Check out : 1) https://mirror.codeforces.com/blog/entry/144152 2) https://mirror.codeforces.com/blog/entry/144422. Hope you and I find ourselves good till my next post.

Hello CODEFORCES...

I hope this blog finds you well! Well, this is my second original problem, find the first one HERE! Please give me valuable feedback and tell me what should be the rating of this problem according to you.

Problem link: https://mirror.codeforces.com/contestInvitation/e767d64e11d327a042c31e01ec9b5cff93950215

I would be more than happy if you will take interest in solving the problem and make (m)a(ny) submission(s)!

Edit 1: Sorry, PS had a major mistake, link is updated.

Edit 2: Problem has a major flaw, and needs to be changed drastically, sorry for the inconvenience caused.

Edit 3: Problem and the model solution is fully ready, give it another shot! ( Special thanks to feev1x for providing the correct logic! See -> https://mirror.codeforces.com/blog/entry/144422?#comment-1291770 )

Hello CODEFORCES...

I hope this blog finds you well! Recently I became interested in the problem preparation process behind the programming contests. So I learnt how to prepare a problem by learning from THIS awesome blog prepared by darkkcyan, thanks again to him! I have prepared some problems after on. One of which I'm going to share with you! Please give me valuable feedback and tell me what should be the rating of this problem according to you, and also where will it be placed if it appears in a Div.2 contest!

Problem link: https://mirror.codeforces.com/contestInvitation/50819984c01cd8d8cc5ba50936ab46e33d54b7a5

Interesting fact: When I submitted my solution for the problem, it got AC at 5000 ms and 100 KB, just the perfect numbers as they are!

I would be more than happy if you will take interest in solving the problem and make (m)a(ny) submission(s)!

https://vjudge.net/solution/58851965

What is wrong ?!

Help!!!

Edit : Got it, I wasn't clearing the global "num" vector.

https://mirror.codeforces.com/problemset/problem/1915/G https://mirror.codeforces.com/contest/1915/submission/306582571

What am I missing?!

Any Help would be deeply appreciated!

I really don't know how the contribution calculations are performed (done), I wrote a blog few days ago hoping someone will answer the question, but one of the comments ( There was only one comment ;(? ) doubled down the question...

So just tried to change the title so it feels little interesting to think about it.

I want to know how the contribution calculations are performed. Any help would be appreciated.

See,

whenever I do typedef long long ll; and then to type 'for' loop in C++, if I don't press shift correctly, it becomes for 9ll , and it reminds me of 9\11, wasn't that a hilarious joke ?!

How ?!!!!!!!!!

Dayum!!!!!!!!!

check it out here...

https://mirror.codeforces.com/blog/entry/2

And Mike has 3 hands in that last picture ... COOL isn't it ?

Codeforces should set the default profile 'pic' to their logo or something like that...

What do you guys think ?!

CF should generate the random number between the 8 and 35, multiply it by 100, and post the question which is of the same difficulty as the daily question...

What do you guys think ?!