Friday, August 18, 2017

My YouTube Channel for Competitive Programming

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My very own YouTube Channel

Tags: video-tutorials,YouTube,data-structures, algorithms

Hi everybody,

I've finally launched my very own YouTube Channel here.

Its a kind request to LIKE the video if it helped you. 
This is important for me as more likes builds a trust for future viewers :)

At present, I plan to upload my video screencasts of online contests and video tutorials of some interesting programming problems that I encounter during daily online contests.

The pattern each video follows is:  
1. Problem Description  
2. Explanation/Solution  
3. Code Implementation/Discussion      

As a beginner, I was a bit slow while talking and I request all of you to watch the videos at 1.25x or 1.5x speed for better experience.

To begin off, I've covered some problems from the [Codechef August Long Challenge](

1. [Palindromic Game] (Analysis based, medium)  
=> Video Link 

2. [Chef and Fibonacci Array] (Medium DP)
=> Video Link 

3. [Strings and Graphs] (Interesting analysis, medium-hard)  
=> Video Link

Video for Hill Jumping will be coming soon :)  
EDIT: Here is the video editorial for Hill Jumping.

Why should you subscribe to this channel:
1. You couldn't solve problems I make videos about: majorly covers beginners and intermediate level coders.    
2. You face difficulty in understanding the text editorial.  
3. You enjoy solving difficult yet interesting problems.
4. You really wanted some YouTube channel that talks about problems based on data structures and algorithms, and discuss how they can be solved.  

I hope this will help many people. Please subscribe and like the videos if you found them helpful.
Comment if you face any difficulties or if you have any recommendations for me.

With my common sense and your feedback, I hope the future videos will be of much greater quality :)  

Have a good day!


  1. Very nice videos, I am very much interested in improving on solving dp based questions, and was interested to know how you came with the model of the dp used in the Chef and Fibonacci Array problem, the only thing I think that is most difficult is to define what a dp state should contain like in the case of how you solved the problem, dp[pos][ai][ai+1], this I think is the most difficult step in solving any dp problem, i.e., defining the state itself, and once the state is defined we can look into these states are interconnected and solve the problem to our needs. Can you help/guide on what the thought process was when you were defining the dp state. I am feeling sad that this problem is categorized into easy dp section, and being in the cp scene for few months now and learning many new and interesting algorithms and ds, I am not able to solve this. Thanks in advance.

    1. Okay, I will make a video for this. Don't worry you will get it soon. Just keep going and keep learning throughout your journey.

    2. I am eagerly waiting for the video, and I am sure it will help a lot of other people too. Keep up the good work.

  2. Hi Rachit, I was really waiting for something like this.
    I liked the way you explained your solutions.
    Can you please suggest me learning resources as a beginner(which platform to prefer for practicing except from regularly participating in contests on codechef/codeforces, and from where to learn new topics).
    Thanks for your efforts :D

    1. Thanks Jay. I would say do both, and then learn about the problems you couldn't solve during contest.

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