Errichto's blog

By Errichto, 3 weeks ago, In English

Hi, I'm going to teach competitive programming classes this Summer, starting with a 4-week batch to see how it goes. I hope to make 2 or 3 groups of ~12 students, each group aimed at some CF rating. We will use problems from Codeforces, CSES, Atcoder, Polish olympiad (only higher group), and my modifications and follow-ups. There will be homework, some to be discussed next lesson.

  • Dates: June 24 to July 19 (4 weeks)
  • Time: morning-noon in Europe
  • 2-3 lessons per week, 1.5h or 2h each
  • Price: around 20 USD per hour, 260-440 USD total per person
  • Platform: Discord and/or Google Meet

Please fill this form to get a 5% early-bird discount. I will use the results to choose and announce groups (difficulty and frequency) in 1-2 weeks.

Feel free to ask questions in the comments, or DM me.

regarding the idea of USACO classes

Update (6.06.2024): We will do 2 x 1.5h lessons per week, with total cost of 260 USD for 8 lessons, every Monday and Thursday from June 24 to July 18 (or up to July 25 if we skip a lesson or two). There will be three groups:

  1. 8:00-9:30, CF max rating 1000-1400 (time in CEST, Poland)
  2. 10:00-11:30, CF max rating 1500-1800
  3. 12:00-13:30, CF max rating 1900-2200

You can pay via Paypal https://paypal.me/errichto or contact me for details of Revolut, Wise or EUR wire transfer. The transfer title should be "CF Classes yourcfhandle" or similar. After paying, contact me with your Discord handle and group preference. Remember about the 5% discount if you have filled the form before.

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3 weeks ago, # |
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Will those classes lecture be available at Errichto's YouTube channel for the benefit of larger community?

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    3 weeks ago, # ^ |
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    No, sorry. But there are a lot of lectures there already.

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3 weeks ago, # |
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Hey Errichto. I will not have sufficient time to join (as well as monetary resources being a student as of now), could you please share the problemset (for maybe 1600-2000 participant range). I'm sure it would mean a lot, not only to me but to many people who are in similar situation.

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    3 weeks ago, # ^ |
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    Ok, I will consider publishing the problemset after Summer. Generally though, there are plenty of free materials (including those created by me) and here I'm offering something extra.

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    3 weeks ago, # ^ |
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    offtopic : but is there a sheet for specialist to expert range.

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3 weeks ago, # |
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Isn't it too costly maybe for countries from South Asia and Africa ? I Know you value your time but maybe a cheaper alternative or maybe some scholarship . and yes I know there are already tons of resources on your YouTube channel.

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3 weeks ago, # |
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Not affordable for third countries

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    3 weeks ago, # ^ |
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    lol, why down-votes , what's wrong with sharing or saying that

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      3 weeks ago, # ^ |
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      kids, may be he's not aware of that and if he, i didn't ask him for a discount or anything like that also many products do various pricing depending on the customer's residence and country

      but as he's rEd and ErRiChTo you down-vote me rashly

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        3 weeks ago, # ^ |
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        Chill out dude, it's not even your main acc

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3 weeks ago, # |
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It's so great to have Errichto as a teacher, Good luck!

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3 weeks ago, # |
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Me poor. Do give discount. Thanks

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3 weeks ago, # |
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🤑 🤑

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3 weeks ago, # |
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What topics will be taught?

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3 weeks ago, # |
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Hehe everyone has money still they try to act if they can get some discount.If you can pay for internet bills then why not for this summer camp.Eveyone will waste their internet bill money on instagram and then ask for discount.

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    3 weeks ago, # ^ |
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    Ok rich kid

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    3 weeks ago, # ^ |
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    Huh, 260 USD is easily more than 20k INR. That easily beats the monthly income of half the indian population and mustn't be anything different for other south-asian or African countries. Clearly, not comparable with internet bills anyways.

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    3 weeks ago, # ^ |
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    Internet bill with unlimited 5G is around 3$ per month. Here the starting fees is 260$ That's around 6-7 years of unlimited 5G internet and unlimited calling

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    7 days ago, # ^ |
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    In Bangladesh my broadband internet bill is 5$ per month with unlimited data usage. We 6 friends use then same connection so it costs me less than 1$.

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3 weeks ago, # |
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Your teaching is sooo good... my brother is going to prepare for these ... I wanted my little dear brother to learn from you.. I understand and believe your time is really valuable.. as u are sacrificing that time from ur family & personal life for the welfare of the world.. but it would be extremely helpful for us if we could get a discount... Good luck brother

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    3 weeks ago, # ^ |
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    "As you are sacrificing time from your family and personal life for the welfare of the world," really? There is no world welfare before one's own; one must also take care of oneself.

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3 weeks ago, # |
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No discount/financial aid for poor mfs like me?

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3 weeks ago, # |
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Is it free for IOI participant?

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13 days ago, # |
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There were many questions about it so:

Yes, there will be recordings available to students, in Google Drive or private YT videos.

I recommend attending at least some classes though.

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    13 days ago, # ^ |
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    please lower prices for people from asia africa etc.

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9 days ago, # |
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c++ requisite?

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    7 days ago, # ^ |
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    I will present everything in C++ (maybe just sometimes Python in the lowest group) so you need to understand C++. You can use any language but it's good if I'm able to read it.

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6 days ago, # |
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We will have our OI training camp around that time so....