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Add the contest page of joi-ho-2025.
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| --- | ||
| layout: "default" | ||
| language: "en" | ||
| title: "The 24th Japanese Olympiad in Informatics Final Round Online Contest" | ||
| breadcrumb: | ||
| - ["/", "Home"] | ||
| --- | ||
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| ## Overview | ||
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| Japanese version is available [here](./index.html). | ||
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| **The 24th Japanese Olympiad in Informatics Final Round Online Contest** is the online contest of [The 24th Japanese Olympiad in Informatics Final Round](https://www.ioi-jp.org/joi/2024/2025-ho-outline). | ||
| The contest is open to everybody. | ||
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| No prizes will be given to the contestants. Live scoreboard will be provided during the contest. The ranking including the contestants' usernames and scores of each task will be published here after the contest. | ||
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| We will not publish the source code submitted to this contest without permission from the participants. | ||
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| After the contest finishes, we will open the judging server for one week. Interested contestants can improve and resubmit their solutions by themselves. | ||
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| ## Contest Information | ||
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| <dl> | ||
| <dt>Name</dt> | ||
| <dd>The 24th Japanese Olympiad in Informatics Online Contest</dd> | ||
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| <dt>Contest System</dt> | ||
| <dd> | ||
| <a href="https://github.com/cms-dev/cms/">CMS</a> (customized version) | ||
| </dd> | ||
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| <dt>Contest duration</dt> | ||
| <dd>4 hours</dd> | ||
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| <dt>The number of tasks</dt> | ||
| <dd>5 tasks</dd> | ||
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| <dt>Language</dt> | ||
| <dd>English, Japanese</dd> | ||
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| <dt>Date and Time</dt> | ||
| <dd>Sunday, February 2, 2025 19:00 - Monday, February 3, 2025 19:00 +0900 (JST)</dd> | ||
| <dd>Sunday, February 2, 2025 10:00 - Monday, February 3, 2025 10:00 (UTC/GMT)</dd> | ||
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| <dd>You can choose start time from above freely and the duration is 4 hours.</dd> | ||
| <dd>However, if you start competing after February 3, 2025 15:00 (JST), competition ends at 19:00 (JST) and the duration is less than 4 hours.</dd> | ||
| </dl> | ||
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| ## Rule | ||
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| Rules that are the same as [The 24th Japanese Olympiad in Informatics Final Round Rule](https://www.ioi-jp.org/joi/2024/2025-ho-outline#OV): | ||
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| - All submissions will receive full feedback. | ||
| - Contestants may submit at most once per task per minute. | ||
| - Contestants may submit at most 50 times per task. | ||
| - Each submitted source code must be written in C++ (C++20). | ||
| - You cannot use C, Pascal nor Java. | ||
| - You may need to write I/O code by yourself. Graders are not provided for all tasks. | ||
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| Rules that are the different from [The 24th Japanese Olympiad in Informatics Final Round Rule](https://www.ioi-jp.org/joi/2024/2025-ho-outline#OV): | ||
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| - Question form is available on a contest server, but no replies are guaranteed. | ||
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| ## Contest Site | ||
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| - Contest site including registration form and live scoreboard will be open at least 30 minutes before the contest starts. |
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| --- | ||
| layout: "default" | ||
| language: "ja" | ||
| title: "第24回日本情報オリンピック 本選 オンラインコンテスト" | ||
| breadcrumb: | ||
| - ["/", "Home"] | ||
| --- | ||
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| ## 概要 | ||
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| English version is available [here](./index-en.html). | ||
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| **第24回日本情報オリンピック 本選 オンラインコンテスト**は[第24回日本情報オリンピック 本選](https://www.ioi-jp.org/joi/2024/2025-ho-outline)のオンラインコンテストです．このオンラインコンテストは誰でも参加することができます． | ||
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| 参加者に対する賞などはありません．コンテスト中にライブスコアボードを公開予定です．コンテスト終了後にユーザ名と各課題の得点がわかるランキングを本ページで公開予定です． | ||
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| このコンテストにおいて提出されたソースコードを提出者の了解なく公開することはありません． | ||
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| コンテスト終了後，1 週間ジャッジサーバーを開放します．復習などに役立ててください． | ||
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| ## コンテスト情報 | ||
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| <dl> | ||
| <dt>名称</dt> | ||
| <dd>第24回日本情報オリンピック 本選 オンラインコンテスト</dd> | ||
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| <dt>コンテストシステム</dt> | ||
| <dd> | ||
| <a href="https://github.com/cms-dev/cms/">CMS</a> (カスタマイズ版) | ||
| </dd> | ||
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| <dt>コンテスト時間</dt> | ||
| <dd>4 時間</dd> | ||
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| <dt>課題数</dt> | ||
| <dd>5 題</dd> | ||
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| <dt>言語</dt> | ||
| <dd>日本語，英語</dd> | ||
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| <dt>日時</dt> | ||
| <dd>2025 年 2 月 2 日 (日) 19:00 - 2025 年 2 月 3 日 (月) 19:00 +0900 (JST)</dd> | ||
| <dd>上記の時間から自由に連続する 4 時間を選んで参加することが出来ます．</dd> | ||
| <dd>もし開始時間が 2 月 3 日 15:00 より後の場合, 競技は 19:00 に終了し, 競技時間は 4 時間より短くなりますのでご注意ください.</dd> | ||
| </dl> | ||
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| ## 規則 | ||
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| [日本情報オリンピック本選 競技規則](https://www.ioi-jp.org/joi/2024/2025-ho-outline#OV)と同様の規則： | ||
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| - すべての課題について，完全なフィードバックが得られます． | ||
| - 各課題ごとに，最後の提出から 1 分間は解答を提出することができません． | ||
| - 各課題ごとに，ソースを提出することができる回数は 50 回までです． | ||
| - C++ が使用できます．バージョンは C++20 です． | ||
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| [日本情報オリンピック本選 競技規則](https://www.ioi-jp.org/joi/2024/2025-ho-outline#OV)と異なる規則： | ||
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| - CMS の質問機能が使用可能ですが，回答は保証されません． | ||
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| ## コンテストサイト | ||
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| - コンテストサイトとライブスコアボードの URL はコンテスト開始 30 分前までに公開します． |