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# Croatian Olympiad in Informatics 2024 | errorgorn’s blog
I virtualed the contest at the latest possible time. Was quite late, so I probably quit at around the halfway mark because P3 seemed impossi…
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Since we get the cpu time from `cpu.stat` in the cgroup which does not get cleared between multiple `isolate --cg --run`s, the cpu time of a run is subtracted from the cpu time of the subsequent run. …
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It seems like the testimonial page is quite outdated for several Olympiads -- maybe due to covid-19?.
Anyways, these are updates for the Korean Olympiad in Informatics. KOI 2021 and 2022 didn't sue…
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https://thyzzs.coding.me/2019/09/20/2019-ji-oi-xuan-chuan/
OI是什么?信息学奥林匹克竞赛(OI,Olympiad in Informatics)。
与大家熟知的数学、物理、化学、生物竞赛合称为高中五大学科竞赛。
肥城一中FOI为学校官方组织,也是唯一的官方社团,有名信息学竞赛小组。
OI学什么?通
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It is a bit unclear to me what spec the tools in this repo are supposed to follow, I can find three different specifications:
- One at
- Legacy spec at [kattis.com](https://www.kattis.com/problem…
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## Problem
Given a multiplicative function $f(x)$, $f(p^e) = ae + bp$. Print $\displaystyle \sum_{i=1}^N f(i) \bmod 469762049$.
## Constraint
- $1 \leq N \leq 10^{13}$
## Solution / Refer…
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Someone submitted the contact form!
**URL**: https://usaco.guide/
**Module**: None
**Topic**: Other
**Message**:
Hi, I'm representing the Polish Olympiad in Informatics, we're currently working on a…
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Competitions / Olympiads in programming
Соревнования / конкурсы /олимпиады по программированию
Змагання / конкурси /олімпіади з програмування
Links to their sites
Examples of tasks from previous…
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**Feature Description**:
With the advent of increasing use of PC2 in a "virtual contest" environment (that is, where PC2 modules run "in the cloud" instead of on hardware provided "on-site"), there …
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https://www.ruanx.net/why-study-oi/
「OI 教育漫谈」系列的第一篇。主要探讨学习 OI 的得失,以及对算法初学者的建议。