AnandOza's blog

By AnandOza, 6 weeks ago, In English

Hi all, I'm planning to do a stream this weekend (edit: now in the past), focusing on problems in Number Theory.

I've put together a mashup of 12 problems (ordered by difficulty), which is available here: https://codeforces.com/contestInvitation/8305134301b2607eaa233fc638ac5fbf91a5c82e (thanks jschnei and neal for problem suggestions and feedback).

Try to solve them on your own! We'll go over those problems & their solutions on stream. Also, feel free to suggest any other number theory problems or concepts you'd be interested in, and I'll try to take a look on stream.

My stream can be found in the sidebar, and you can also follow me directly on Twitch. I upload my streams (afterwards) to YouTube as well, so feel free to subscribe there if you'd like to watch them later!

Edit: I've published this (with timestamps) on YouTube: https://youtu.be/VoD5Mt3Bdec

 
 
 
 
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6 weeks ago, # |
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For what rating range of people is this most relevant?

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    6 weeks ago, # ^ |
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    I think it will be relevant for people who find the mashup problems interesting.

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      6 weeks ago, # ^ |
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      nice job on today's color change!

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        6 weeks ago, # ^ |
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        Thank you! Maybe if I posted it as yellow it wouldn't get many downvotes. :D

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          6 weeks ago, # ^ |
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          Lets disprove the ratism by downvoting this comment!

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        6 weeks ago, # ^ |
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        did you change your t-shirt from yellow to red after becoming red? Btw congrats :)

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    6 weeks ago, # ^ |
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    The mashup problems range from 800 to 2300, with most in the 1400-1700 range.

    I'm planning to try to cover the basics as I go (as they are needed for the problems), so it would also be approachable for beginners. I'll also try to adjust based on how the stream is going / what people are saying in chat.

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6 weeks ago, # |
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Reminder that this is in approximately 22 hours! Take a look at the problems & try to solve them if you have time. :)

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    6 weeks ago, # ^ |
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    feel free to suggest any other number theory problems or concepts you'd be interested in

    How to approach medium to hard combinatoric counting problems, like inclusion exclusion of rating around 2000 or above not requiring very high math but thinking, for example from atcoder contests

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      6 weeks ago, # ^ |
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      Since that isn't Number Theory, I'll probably save it for a future stream, but I'm definitely interested in doing a combinatorics & expected value stream -- that's a topic I like a lot. Thanks for your suggestion!

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6 weeks ago, # |
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Starting now!

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5 weeks ago, # |
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Can you please upload the stream on youtube.

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    5 weeks ago, # ^ |
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    Maybe he's busy. You can watch the whole stream on twitch, btw.

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    5 weeks ago, # ^ |
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    It's available at https://www.youtube.com/watch?v=VoD5Mt3Bdec, though I still have to add timestamps (for the start of each problem) and links (for each problem on CF, not in the gym, so you can see the problems without an account).

    If you or anyone else wants to write those and PM them to me, I would appreciate it. :)

    (Otherwise I'll do it at some point when I get a chance, and then publish the video.)

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5 weeks ago, # |
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It's published on YT now (with timestamps). I've edited the link into the blog post.

Thanks everyone for participating! It looks like people are still submitting to the mashup, which is great to see -- practice is the best way to improve.

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4 weeks ago, # |
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I've created a Discord, if you want to keep up with my latest streaming plans, give me feedback, or just chat!

Join here: https://discord.gg/2S4QDb5anK