Please, try EDU on Codeforces! New educational section with videos, subtitles, texts, and problems. ×

### RockyB's blog

By RockyB, 10 days ago, ,

Hi everyone :)

You could notice that last time I trying hard to make content on my youtube channel better. If you don't know anything about my channel, I do video analysis of nice educational Competitive Programming problems, observe cool algorithms, do screencasts, also I plan to add coding interview problems content.

I truly believe that potentially I can help many people as well as myself to achieve not only professional goals but also become much better in CP.

So, today I recorded an interesting and in some moments funny screencast with cool detailed timestamps.

0:00 - Starting
0:30 - Solving problem A
3:30 - Solving problem B
6:16 - Solving problem C
10:05 - Solving problem D
14:27 - Solving problem E1
28:23 - Thinking on problem E2
41:16 - Switched to problem F
1:10:34 - Solving problem E2
1:36:37 - Debugging problem E2
1:40:00 - Finishing debugging and finally submitting E2
1:41:00 - Thinking on the last problem F


I hope you would enjoy the video. If you have any feedback/suggestions, you're welcome. Also, don't forget to subscribe to the channel, by subscribing you motivate me to work hard and make more cool content :)

UPD:

Finally all solutions passed a system testing, ranked 50th among 18k+ participants

• +21

 » 10 days ago, # |   +14 enjoyed the last video about G problem too, keep doing this :)
•  » » 10 days ago, # ^ |   +9 Thanks, really appreciate your words!
 » 10 days ago, # |   +5 I came across your channel from the Boruvka's algortihm blog. You explained it really nice. Also it was good to see you uploading editorials of F problems of ABCs...that helps a lot...thanks and best of luck! :D
•  » » 10 days ago, # ^ |   +3 I'm glad that you liked my Boruvka's Algorithm explanation. I will try to keep it on ;)
 » 10 days ago, # |   +2 Keep up the good work. May you make an explanation video to the F problem of the last ABC, please?
•  » » 9 days ago, # ^ |   +1 Thanks, I will try it :)
 » 9 days ago, # |   0 Auto comment: topic has been updated by RockyB (previous revision, new revision, compare).
 » 9 days ago, # |   0 Hi, it would be better if you would add commentary after the contest.
•  » » 9 days ago, # ^ |   0 Thanks for suggestion :) However, normally after the contest it's very late for me, even so I will try to start doing quick analysis at the end of videos. But, what do you think, is there any point to do video solutions for the contest on next days after the contest? (Maybe a lot of people by that time would know solutions, so there is no point to do it???)
•  » » » 9 days ago, # ^ |   0 For easier problems, Yes, I don't think so they would have to wait a day for the solution.For harder problems, Editorials and comments sometimes aren't enough and someone explaining the problem with code could be best way to learn. I suggest to just choose 1-2 (depending on your time) harder problems and add voice over the screencast.
•  » » » » 9 days ago, # ^ |   0 Thank you, this is a good idea!