Whistle's blog

Youtube channel to explain CF problems

By Whistle, history, 7 years ago, In English

As a way to give back to the amazing community, I will make a Youtube channel
explaining algorithm techniques and Codeforces problems solutions.
It will be targated towards newer members who are not very experienced in competitive programming yet.
The problems will be at level Div2 D-E up to Div1 D.

I want to know which method do you prefer ?
1- pick up some old problems that I find interesting and explain the solution and the techniques that I used.
2- pick up a problem from the last contest on Codeforces and explain the solution and the techniques in that problem.

  • Vote: I like it
  • +104
  • Vote: I do not like it

Comments Comments (21)
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7 years ago, # |
  Vote: I like it +261 Vote: I do not like it

1

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7 years ago, # |
  Vote: I like it +93 Vote: I do not like it

2

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7 years ago, # |
  Vote: I like it -51 Vote: I do not like it

1

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7 years ago, # |
  Vote: I like it +22 Vote: I do not like it

Please vote by upvoting or downvoting the first two comments.
Thanks.

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7 years ago, # |
  Vote: I like it -36 Vote: I do not like it

2

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7 years ago, # |
  Vote: I like it +32 Vote: I do not like it

Why not both? I think this would be an excellent idea. Perhaps you could link your YT channel so that people can subscribe now, so that they don't miss your next blog?

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7 years ago, # |
  Vote: I like it +1 Vote: I do not like it

2 would be good option and also discuss old problems related to that topic or a slight variant, that way many problems will be covered.

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7 years ago, # |
← Rev. 2   Vote: I like it +1 Vote: I do not like it

Both are preferable.... But, I think the first is better because if you're doing something you're interested in, it will be more energetic and will end up being done better than if you're doing something just because it was recent.

Div 2 D-E = Div B and C, right ?

Include Div 2 C = Div 1 A as well.

Also sometimes you can include Div 2 A problems when you're not in the mood for making a long extensive video, but still feel like churning some output. You can have a seperate playlist for this titled 'Aha ! solutions' or something. For this, I'd recommend you choose A problems which have those quick Aha ! solutions where one quick observation makes the problem easy, rather than those A problems where it's immediately obvious what to do after reading the question and is just implementation.

(An example of the kind of problem that would be included here is Mahmud and Longest Uncommon Subsequence).

On first reading, it looks difficult, but one quick Aha ! observation transforms it into an easy problem. These videos would be useful and would be targeted towards enticing people into joining competitive programming rather than beginners.

It's a good initiative. Put down the name of the YouTube channel so that we can subscribe.

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7 years ago, # |
  Vote: I like it 0 Vote: I do not like it

1 2

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7 years ago, # |
  Vote: I like it +1 Vote: I do not like it

1 — However, I'd like to suggest that you pick up problems such that their solutions are useful in many other problems, i.e they are general enough to be used in other kinds of problems. That may include problems of recent contests.

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7 years ago, # |
  Vote: I like it +26 Vote: I do not like it

"It will be targeted towards newer members who are not very experienced in competitive programming yet."

Nice! What format will your channel be in? (coding or written explanations, live camera or screen capture, etc)

If you have any questions or want tips for starting a channel, don't hesitate to ask.

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7 years ago, # |
  Vote: I like it +14 Vote: I do not like it

Why did you cheat?

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7 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Awesome dude can't wait for you to start your channel. Do both please but of couse 1 is the best, there are many beautiful problems from past contests than from the current contest.

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7 years ago, # |
  Vote: I like it +4 Vote: I do not like it

Please use both. After a contest ends discuss the problems of that contest. And if there is a good gap between two contest, pick up some old problems and discuss them.

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7 years ago, # |
  Vote: I like it -6 Vote: I do not like it

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7 years ago, # |
← Rev. 2   Vote: I like it 0 Vote: I do not like it
  • Good Initiative
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7 years ago, # |
  Vote: I like it +5 Vote: I do not like it

It has been 2 weeks, where is the channel?

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    7 years ago, # ^ |
      Vote: I like it +1 Vote: I do not like it

    I am so sorry, but my laptop has some troubles.
    I need about three days, so I can fix it and then start my first video.
    Also, tweety gonna help me with my channel; we decided to start it after the IOI--since he is participating thins year.
    again, I am so sorry; I will try to post my first video ASAP.

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