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Errichto's blog

By Errichto, 2 months ago, In English,

You can watch me on https://www.twitch.tv/errichto or https://www.youtube.com/errichto2. There is schedule with countdown on Twitch. Most likely I will stream in May on Tuesday mornings and Sunday evenings.

(updated on May 30)

two recent videos for beginners: Computations Modulo P, Binary Exponentiation
in works: Matrix Expo, Gaussian Elimination, EV in Chain-graph, Berlekamp-Massey

JUNE UPDATEJune 20, 19:00 CEST solving random problems suggested by viewers

 
 
 
 
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2 months ago, # |
  Vote: I like it +24 Vote: I do not like it

can you consider Google Code Jam round 1C please?

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    2 months ago, # ^ |
      Vote: I like it +14 Vote: I do not like it

    That's a good idea, thanks. Will do that, maybe on May 12.

    Also, boring stream will start in 10 minutes!

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    2 months ago, # ^ |
      Vote: I like it +17 Vote: I do not like it

    This time problems were easy, I mean first two. So I don't think its a good suggestion (my opinion), also good Analysis is available at Codejam site.

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      2 months ago, # ^ |
        Vote: I like it +15 Vote: I do not like it

      Ok, will keep that in mind. But mechashadow's comment still didn't deserve downvotes IMO. I said in blog that I want to practice for GCJ, and he suggested a recent GCJ round, which I indeed didn't solve.

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2 months ago, # |
  Vote: I like it +50 Vote: I do not like it

>will stream on May 3rd

Why bother if you're a time traveller?

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2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Are you allowed to stream during competition?

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2 months ago, # |
Rev. 2   Vote: I like it +6 Vote: I do not like it

up, Sunday stream AGC 43 will start in 43 minutes

EDIT: after 1 hour, my Internet went off. Trying to restart it froze my pc, after restarting pc I couldn't open OBS. Well, let's watch the lockout contest instead https://www.twitch.tv/ecnerwala

see you on Tuesday for next stream, I will then get back to AGC 43.

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2 months ago, # |
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How about Solving Codechef May Long Div 1 Hard Problems. A suggestion for 12th May or 17th May.

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2 months ago, # |
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Since Quantum Programming contest is coming soon, will you do a stream on Quantum Programming?It would be helpful.

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7 weeks ago, # |
  Vote: I like it +8 Vote: I do not like it

going live now, will do problems C and D from a recent Atcoder Grand Contest

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3 weeks ago, # |
  Vote: I like it +3 Vote: I do not like it

I'm back after a few weeks break! Watch a new stream in 2.5 hours from now, shortly after CF round ends. I will solve random problems requested by viewers. As always, watch me on https://www.twitch.tv/errichto or youtube.

I will organize a lockout contest next weekend (maybe with a test round today?).