Updown's blog

Codeforces 839C, DFS Video Solution
By Updown, history, 7 years ago, In English

I created a video solution to the problem 839C. It is a DFS on trees problem.

The tutorial includes a simple code (no defines, etc) that matches the tutorial and a line-by-line explanation of the code while I write it (helpful for those stuck on the implementation of DFS).

Here is the video solution.

Here is my channel with all the video solutions.

As a side note, I am in the process of adding OI problems (such as USACO and APOI) to Course 3 of VPlanet because I realized that there isn't anywhere to find OI problems separated by topic.

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7 years ago, # |
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really helpful thanks a lot !! keep posting

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7 years ago, # |
  Vote: I like it +28 Vote: I do not like it

Consider job as Astar documentor... you would be a lot better than me

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7 years ago, # |
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That was really a nice explanation and clear language but I just think none of the channels last long. There are many people(algo live) who start but then end the channel due to some or the other issues. Let's hope you continue this forever :P

As a sidenote, there are OI problems sorted by categories. https://dmoj.ca/problems/?show_types=1&type=5&order=-user_count

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

Great effort! Keep it up :)

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5 years ago, # |
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Excellent

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