Winning Codeforces Round #627 (Div. 3)

If this was helpful, consider liking or subscribing!

[ritiksingla]

Not only winning competition but winning our hearts by putting your time in making these live and editorial videos. Thank you so much.

[mridulbhatt]

I was frantically sear hing for order statistics for multiset when I realised that ai-bi might repeat. That took a hell lot of time and finally had to resort to another interpretation(was mentioned in the tutorial). Certainly learned something valueable today!!!

[saikatify]

Good Job, William. I was waiting for this video.


Till what rating do you feel confident of solving a problem in a contest ?

For example, I am confident of solving problems rated 1600 or 1700 in a contest.

I'd like to discuss F with you. I understood that DFS1 computes the maximum subtree rooted at v for every vertex v. But, I did not understand what dfs2() does. Can you please help me ?

[rafayeathossain]

thanks for uploading i was able to solve Upto E but missed F, now i have got hint . Thanks

[laxityadav]

Please make a video on how you started competitive programming.

[shashanktiwari]

I did C by just counting max continuous L's + 1.. does it fail at some case?? 😛

[mostafamarwanmostafa]

I swear you are like an inspiration to me

[kishanpatel]

First video with 0 dislike, sometimes life just surprises me!

[JackSparrw]

What is the best source for learn data structure & algorithm?

[sharathnair]

whats the "%y+" thing you do after every code?

[elizabeth]

William we want more coding tutorials please!

[JackSparrw]

How much time do you invest on programming every day ?

[fuasteriskk]

so... you dont wait for your solution to get accepted?

[jiakai]

now i will use while(n- -) rather than a for loop xD

[souravsharma]

Can you suggest me a good resource to learn data structure and algorithm..
I am pretty bad at competitive programming i am barely able to solve first 2-3 question codechef long challenge..

[prarinamderia]

Can you gave me a idea of a tree related qns??

[brayaon]

I think you should include your GitHub account in video's description.

[shreyanshsingh]

If it doesn't hamper your performance, please consider naming variables in a more understandable way. Your code is cool, I can follow along upto like C or D (the topics I know), but it would've been much simpler with descriptive variable names.

[mridulbhatt]

I was frantically sear hing for order statistics for multiset when I realised that ai-bi might repeat. That took a hell lot of time and finally had to resort to another interpretation(was mentioned in the tutorial). Certainly learned something valueable today!!!