Shayan | International Grandmaster on Codeforces

56 posts

Shayan | International Grandmaster on Codeforces

Shayan | International Grandmaster on Codeforces

@ShayanCJahan

Teaching algorithmic thinking and how to crack interviews. PhD @ UMD

San Francisco, CA Katılım Nisan 2024
19 Takip Edilen85 Takipçiler
Shayan | International Grandmaster on Codeforces retweetledi
AmShZ
AmShZ@_AmShZ_·
In DFS, which convention do you use for naming the current node and its neighbor?
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AmShZ
AmShZ@_AmShZ_·
Cooking...
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Shayan | International Grandmaster on Codeforces
Every day that passes, I think more about why no one builds simple wrapper over LLMs and makes sure it never uses em dashes, “master,” and “deep dive”. It’s super simple, and I would personally buy that. I’m really sick of this shit.
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AmShZ
AmShZ@_AmShZ_·
After running five contests, we just had our first truly flawless one. Hosting it on Repovive and seeing our own brand take shape gave me an incredible sense of satisfaction.
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AmShZ
AmShZ@_AmShZ_·
Which algorithm felt useless at first, but became one of your favorites later?
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Shayan | International Grandmaster on Codeforces
I just realized when you have a todo list for today, you either do it all today or it bites the dust. There is no I’ll do the rest tomorrow. Tomorrow has its own already.
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Rod Tavakoli
Rod Tavakoli@tavaqueue·
I made $25K in a month with a pressure washer at 18. No connections. Never used a pressure washer before. Started with $20. Simply knocked on doors until someone said yes. That's still my entire business strategy. The doors are just digital now. repovive.com
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Shayan | International Grandmaster on Codeforces retweetledi
Paul Graham
Paul Graham@paulg·
Something I taught 14 yo: Most progress is a mix of steps forward and steps back, just with with more of the former. But you can get a run of steps back. So to judge progress accurately you need to use a big enough window, or it could look like you're failing.
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Shayan | International Grandmaster on Codeforces retweetledi
Repovive.
Repovive.@repovive·
We are back! Get ready for the next round. 🏆 Repovive Standard Round 2 📅 Sunday, 19 April 2026 | 13:35 UTC ⏳ Duration: 2 hours 🔗 Register here: repovive.com/contests/5 📖 CF Blog & Details: codeforces.com/blog/entry/153…
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Shayan | International Grandmaster on Codeforces retweetledi
AmShZ
AmShZ@_AmShZ_·
A fast way to toggle a character's case (upper/lower): XORing with space; 'a' ^ ' ' = 'A'
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Shayan | International Grandmaster on Codeforces retweetledi
AmShZ
AmShZ@_AmShZ_·
A fast way to check if a number is a power of 2: n & (n - 1) == 0
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Shayan | International Grandmaster on Codeforces
Having a startup is hard, and it takes time to learn its different aspects. Cold emailing was one of the hardest challenges, but like everything else, you learn your way after a while.
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AmShZ
AmShZ@_AmShZ_·
Met Shayan at ICPC 2024! He came from the University of Maryland, and I from Sharif University of Technology. After years, we finally met again. He got us this as a souvenir! @ShayanCJahan
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Jashan
Jashan@Jashanx_gill·
Why is everyone making a shift from Claude to Codex?
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