64 lines
2.9 KiB
Text
64 lines
2.9 KiB
Text
---
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id: oly
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title: "Olympiads"
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author: Benjamin Qi
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description: Once you've reached Platinum, it may be helpful to practice with problems from other (inter)national olympiads.
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---
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> Hello, Which online judge should I practice more to do well in **IOI** ?
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> the closest OJ for IOI style?
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> Do you have any magic problems sets to suggest?
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## National
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See [here](https://ioinformatics.org/page/members/7) for additional links. The [OI Checklist](https://oichecklist.pythonanywhere.com/) is a great way to track your progress. :)
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* [USA](http://www.usaco.org/)
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* Format
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* Bronze, Silver, Gold, Platinum Divisions
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* 3 problems, 4 hrs
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* [Very Old Gold Probs](http://tjsct.wikidot.com/usaco/)
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* [USACO Training](http://train.usaco.org/usacogate)
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* not particularly beginner-friendly but still helpful
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* somewhat outdated in the sense that it lacks topics which are now quite common (ex. segment tree)
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* if you're unsure about whether it will be useful, you might as well try it and see where you get stuck :P
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* personally, I did the first five chapters in one summer (though I had to look up some hints ...)
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* [article :o](https://www.usenix.org/legacy/bodinfo/bod/bodmarch10/future.pdf)
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* [Japan](https://www.ioi-jp.org/)
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* [Open Contests](https://contests.ioi-jp.org/)
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* see [oj.uz](https://oj.uz/problems/source/45)
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* [Poland](https://szkopul.edu.pl/portal/)
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* [Solutions (in Polish)](https://www.oi.edu.pl/l/40/)
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* [Canada](https://cemc.math.uwaterloo.ca/contests/computing.html)
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* [WCIPEG](https://wcipeg.com/problems/cat%3Dccc%2Cshow%3D50)
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* [DMOJ](https://dmoj.ca/problems/?category=24)
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* [Croatia](http://hsin.hr/coci/)
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* not full feedback
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* [Indonesia](https://competition.ia-toki.org/contests)
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* monthly
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* [Philippines](https://noi.ph/past-problems/)
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* Other
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* [China (WCIPEG)](https://wcipeg.com/problems/cat%3Dnoi%2Cshow%3D50)
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* [Lithuania](http://online.lmio.lt/)
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* [Australia](https://orac.amt.edu.au/)
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* [Italy](https://training.olinfo.it/#/overview)
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## International
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* IOI
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* Online Judges
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* [Yandex](https://contest.yandex.com/ioi/)
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* [WCIPEG](https://wcipeg.com/problems/cat%3Dioi%2Cshow%3D50)
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* [DMOJ](https://dmoj.ca/problems/?category=5)
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* [oj.uz](https://oj.uz/problems/source/22)
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* Misc
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* [List of 2017 IOI Participants](http://weaselcrow.com/pro/cf/ioi2017/)
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* [IOI 2018 Syllabus](https://people.ksp.sk/~misof/ioi-syllabus/ioi-syllabus.pdf)
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* [Baltic](http://www.boi2017.org/) (BOI)
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* [Central European](http://ceoi.inf.elte.hu/) (CEOI)
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* submit BOI / CEOI at [CSES](https://cses.fi/)
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* [Balkan](http://boi2018.ro/home)
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* [International Zhautykov](https://oj.uz/problems/source/24) (IZhO)
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* [Asia-Pacific](http://apio-olympiad.org/) (APIO)
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* [International Informatics Olympiad in Teams](http://ioit.altervista.org/2018-teams-and-contests-.html) (IOIT)
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* [InfO(1) cup](http://info1cup.com/)
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