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   500 点のアニメーション図解、14 種類のプログラミング言語のコード、コミュニティでの 3000 件の質問と回答が、データ構造とアルゴリズムの入門を支えます。
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   推薦の言葉
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     「手を動かし、考えながら学べる、わかりやすいデータ構造とアルゴリズムの入門書です。アルゴリズムを初めて学ぶ方に、ぜひおすすめします。」
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     —— 邓俊辉、清華大学コンピュータ科学系教授
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     「私がデータ構造とアルゴリズムを学んでいた頃に『Hello Algo』があれば、学ぶのが 10 倍楽になっていたでしょう！」
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       <path d="M256 0H576c35.3 0 64 28.7 64 64V288c0 35.3-28.7 64-64 64H256c-35.3 0-64-28.7-64-64V64c0-35.3 28.7-64 64-64zM476 106.7C471.5 100 464 96 456 96s-15.5 4-20 10.7l-56 84L362.7 169c-4.6-5.7-11.5-9-18.7-9s-14.2 3.3-18.7 9l-64 80c-5.8 7.2-6.9 17.1-2.9 25.4s12.4 13.6 21.6 13.6h80 48H552c8.9 0 17-4.9 21.2-12.7s3.7-17.3-1.2-24.6l-96-144zM336 96a32 32 0 1 0 -64 0 32 32 0 1 0 64 0zM64 128h96V384v32c0 17.7 14.3 32 32 32H320c17.7 0 32-14.3 32-32V384H512v64c0 35.3-28.7 64-64 64H64c-35.3 0-64-28.7-64-64V192c0-35.3 28.7-64 64-64zm8 64c-8.8 0-16 7.2-16 16v16c0 8.8 7.2 16 16 16H88c8.8 0 16-7.2 16-16V208c0-8.8-7.2-16-16-16H72zm0 104c-8.8 0-16 7.2-16 16v16c0 8.8 7.2 16 16 16H88c8.8 0 16-7.2 16-16V312c0-8.8-7.2-16-16-16H72zm0 104c-8.8 0-16 7.2-16 16v16c0 8.8 7.2 16 16 16H88c8.8 0 16-7.2 16-16V416c0-8.8-7.2-16-16-16H72zm336 16v16c0 8.8 7.2 16 16 16h16c8.8 0 16-7.2 16-16V416c0-8.8-7.2-16-16-16H424c-8.8 0-16 7.2-16 16z" fill="var(--md-primary-bg-color)">
       </path>
      </svg>
      <h3 style="margin-left: 0.5em;">
       アニメーションによる図解
      </h3>
     </div>
     <p style="margin: 0;">
      わかりやすい内容で、無理なく学べます
     </p>
     <p class="intro-quote">
      "A picture is worth a thousand words."
      <br/>
      「一枚の図は千の言葉に勝る」
     </p>
    </div>
   </div>
   <video aria-label="アルゴリズムの動きを示すアニメーション" class="intro-image" data-home-poster="../assets/home/50aa7b2c8191c024/../shared/images/9e5f39bf33afc70f/animation-poster.webp" data-home-video="../assets/home/50aa7b2c8191c024/../shared/media/6c70de2b2bf4eef7/animation.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
   </video>
   <noscript>
    <a href="../assets/home/50aa7b2c8191c024/../shared/media/6c70de2b2bf4eef7/animation.mp4">
     <img alt="アルゴリズムの動きを示すアニメーション" class="intro-image" height="1080" src="../assets/home/50aa7b2c8191c024/../shared/images/9e5f39bf33afc70f/animation-poster.webp" width="1600"/>
     アニメーションによる図解
    </a>
   </noscript>
  </div>
  <div class="intro-container">
   <video aria-label="コードを実行する例" class="intro-image" data-home-poster="../assets/home/50aa7b2c8191c024/../shared/images/f33a13e8331245ae/running_code-poster.webp" data-home-video="../assets/home/50aa7b2c8191c024/../shared/media/bb169a96ca8316da/running_code.mp4" height="1082" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1082" width="1600">
   </video>
   <noscript>
    <a href="../assets/home/50aa7b2c8191c024/../shared/media/bb169a96ca8316da/running_code.mp4">
     <img alt="コードを実行する例" class="intro-image" height="1082" src="../assets/home/50aa7b2c8191c024/../shared/images/f33a13e8331245ae/running_code-poster.webp" width="1600"/>
     ワンクリックで実行
    </a>
   </noscript>
   <div class="intro-text">
    <div>
     <div style="display: flex; align-items: center;">
      <svg height="1.5em" viewbox="0 0 640 512" width="1.5em" xmlns="http://www.w3.org/2000/svg">
       <path d="M392.8 1.2c-17-4.9-34.7 5-39.6 22l-128 448c-4.9 17 5 34.7 22 39.6s34.7-5 39.6-22l128-448c4.9-17-5-34.7-22-39.6zm80.6 120.1c-12.5 12.5-12.5 32.8 0 45.3L562.7 256l-89.4 89.4c-12.5 12.5-12.5 32.8 0 45.3s32.8 12.5 45.3 0l112-112c12.5-12.5 12.5-32.8 0-45.3l-112-112c-12.5-12.5-32.8-12.5-45.3 0zm-306.7 0c-12.5-12.5-32.8-12.5-45.3 0l-112 112c-12.5 12.5-12.5 32.8 0 45.3l112 112c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L77.3 256l89.4-89.4c12.5-12.5 12.5-32.8 0-45.3z" fill="var(--md-primary-bg-color)">
       </path>
      </svg>
      <h3 style="margin-left: 0.5em;">
       ワンクリックで実行
      </h3>
     </div>
     <p style="margin: 0;">
      十数種類のプログラミング言語に対応し、コードの実行を可視化できます
     </p>
     <p class="intro-quote">
      "Talk is cheap. Show me the code."
      <br/>
      「口で語るより、コードを見せよう」
     </p>
    </div>
   </div>
  </div>
  <div class="intro-container">
   <div class="intro-text">
    <div>
     <div style="display: flex; align-items: center;">
      <svg height="1.5em" viewbox="0 0 640 512" width="1.5em" xmlns="http://www.w3.org/2000/svg">
       <path d="M88.2 309.1c9.8-18.3 6.8-40.8-7.5-55.8C59.4 230.9 48 204 48 176c0-63.5 63.8-128 160-128s160 64.5 160 128s-63.8 128-160 128c-13.1 0-25.8-1.3-37.8-3.6c-10.4-2-21.2-.6-30.7 4.2c-4.1 2.1-8.3 4.1-12.6 6c-16 7.2-32.9 13.5-49.9 18c2.8-4.6 5.4-9.1 7.9-13.6c1.1-1.9 2.2-3.9 3.2-5.9zM0 176c0 41.8 17.2 80.1 45.9 110.3c-.9 1.7-1.9 3.5-2.8 5.1c-10.3 18.4-22.3 36.5-36.6 52.1c-6.6 7-8.3 17.2-4.6 25.9C5.8 378.3 14.4 384 24 384c43 0 86.5-13.3 122.7-29.7c4.8-2.2 9.6-4.5 14.2-6.8c15.1 3 30.9 4.5 47.1 4.5c114.9 0 208-78.8 208-176S322.9 0 208 0S0 78.8 0 176zM432 480c16.2 0 31.9-1.6 47.1-4.5c4.6 2.3 9.4 4.6 14.2 6.8C529.5 498.7 573 512 616 512c9.6 0 18.2-5.7 22-14.5c3.8-8.8 2-19-4.6-25.9c-14.2-15.6-26.2-33.7-36.6-52.1c-.9-1.7-1.9-3.4-2.8-5.1C622.8 384.1 640 345.8 640 304c0-94.4-87.9-171.5-198.2-175.8c4.1 15.2 6.2 31.2 6.2 47.8l0 .6c87.2 6.7 144 67.5 144 127.4c0 28-11.4 54.9-32.7 77.2c-14.3 15-17.3 37.6-7.5 55.8c1.1 2 2.2 4 3.2 5.9c2.5 4.5 5.2 9 7.9 13.6c-17-4.5-33.9-10.7-49.9-18c-4.3-1.9-8.5-3.9-12.6-6c-9.5-4.8-20.3-6.2-30.7-4.2c-12.1 2.4-24.7 3.6-37.8 3.6c-61.7 0-110-26.5-136.8-62.3c-16 5.4-32.8 9.4-50 11.8C279 439.8 350 480 432 480z" fill="var(--md-primary-bg-color)">
       </path>
      </svg>
      <h3 style="margin-left: 0.5em;">
       読者同士で学び合う
      </h3>
     </div>
     <p style="margin: 0;">
      質問や意見を交わし、読者同士で一緒に理解を深めましょう
     </p>
     <p class="intro-quote">
      "Learning by teaching."
      <br/>
      「教えることも、学びにつながる」
     </p>
    </div>
   </div>
   <video aria-label="コメントで学び合う例" class="intro-image" data-home-poster="../assets/home/50aa7b2c8191c024/../shared/images/f9ac69536a7582f5/comment-poster.webp" data-home-video="../assets/home/50aa7b2c8191c024/../shared/media/62aa0b8d351c63a7/comment.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
   </video>
   <noscript>
    <a href="../assets/home/50aa7b2c8191c024/../shared/media/62aa0b8d351c63a7/comment.mp4">
     <img alt="コメントで学び合う例" class="intro-image" height="1080" src="../assets/home/50aa7b2c8191c024/../shared/images/f9ac69536a7582f5/comment-poster.webp" width="1600"/>
     読者同士で学び合う
    </a>
   </noscript>
  </div>
 </div>
</section>
<section class="home-div" data-md-color-primary="grey" data-md-color-scheme="slate">
 <div class="section-content" style="max-width: 90vw;">
  <div style="margin: 2em auto;">
   <h3>
    著者
   </h3>
   <div class="profile-div">
    <div class="profile-cell">
     <a href="https://github.com/krahets">
      <img alt="著者：yudongjin" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/02348410d40f7665/avatar_yudongjin.webp" decoding="async" height="512" width="512"/>
      <noscript>
       <img alt="著者：yudongjin" class="profile-img" height="512" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/02348410d40f7665/avatar_yudongjin.webp" width="512"/>
      </noscript>
      <br/>
      <b>
       靳宇栋（@krahets）
      </b>
     </a>
    </div>
   </div>
  </div>
  <div style="margin: 2em auto;">
   <h3>
    コードのレビュー担当者
   </h3>
   <p>
    原書のさまざまな言語によるコードは、次の開発者の協力によって作られました。その尽力と貢献に感謝します！
   </p>
   <div class="profile-div">
    <div class="profile-cell">
     <a href="https://github.com/coderonion">
      <img alt="コードのレビュー担当者：coderonion" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/db606f27971eae34/avatar_coderonion.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：coderonion" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/db606f27971eae34/avatar_coderonion.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       coderonion
      </b>
      <br/>
      <sub>
       Zig, Rust
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/curtishd">
      <img alt="コードのレビュー担当者：curtishd" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/feedb0e547ea31fc/avatar_curtishd.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：curtishd" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/feedb0e547ea31fc/avatar_curtishd.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       curtishd
      </b>
      <br/>
      <sub>
       Kotlin
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/Gonglja">
      <img alt="コードのレビュー担当者：Gonglja" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/cdcf023b032b8d30/avatar_Gonglja.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：Gonglja" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/cdcf023b032b8d30/avatar_Gonglja.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       Gonglja
      </b>
      <br/>
      <sub>
       C, C++
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/gvenusleo">
      <img alt="コードのレビュー担当者：gvenusleo" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/464e2d351b9263ec/avatar_gvenusleo.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：gvenusleo" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/464e2d351b9263ec/avatar_gvenusleo.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       gvenusleo
      </b>
      <br/>
      <sub>
       Dart
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/hpstory">
      <img alt="コードのレビュー担当者：hpstory" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/7b6478acdab6b845/avatar_hpstory.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：hpstory" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/7b6478acdab6b845/avatar_hpstory.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       hpstory
      </b>
      <br/>
      <sub>
       C#
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/justin-tse">
      <img alt="コードのレビュー担当者：justin-tse" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/208ee5aae490eefa/avatar_justin-tse.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：justin-tse" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/208ee5aae490eefa/avatar_justin-tse.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       justin-tse
      </b>
      <br/>
      <sub>
       JS, TS
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/khoaxuantu">
      <img alt="コードのレビュー担当者：khoaxuantu" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/9d3f1a21ff51de78/avatar_khoaxuantu.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：khoaxuantu" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/9d3f1a21ff51de78/avatar_khoaxuantu.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       khoaxuantu
      </b>
      <br/>
      <sub>
       Ruby
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/krahets">
      <img alt="コードのレビュー担当者：krahets" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/e321f9a3ac2739e0/avatar_krahets.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：krahets" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/e321f9a3ac2739e0/avatar_krahets.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       krahets
      </b>
      <br/>
      <sub>
       Python, Java
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/night-cruise">
      <img alt="コードのレビュー担当者：night-cruise" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/960b489efa22abd4/avatar_night-cruise.jpg" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：night-cruise" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/960b489efa22abd4/avatar_night-cruise.jpg" width="384"/>
      </noscript>
      <br/>
      <b>
       night-cruise
      </b>
      <br/>
      <sub>
       Rust
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/nuomi1">
      <img alt="コードのレビュー担当者：nuomi1" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/7316a9eb4429b259/avatar_nuomi1.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：nuomi1" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/7316a9eb4429b259/avatar_nuomi1.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       nuomi1
      </b>
      <br/>
      <sub>
       Swift
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/Reanon">
      <img alt="コードのレビュー担当者：Reanon" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/dcc15aa68cc793c7/avatar_Reanon.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：Reanon" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/dcc15aa68cc793c7/avatar_Reanon.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       Reanon
      </b>
      <br/>
      <sub>
       Go, C
      </sub>
     </a>
    </div>
    <div class="profile-cell">
     <a href="https://github.com/rongyi">
      <img alt="コードのレビュー担当者：rongyi" class="profile-img" data-home-src="../assets/home/50aa7b2c8191c024/../shared/images/5dc6c4b1d8bfe0ac/avatar_rongyi.webp" decoding="async" height="384" width="384"/>
      <noscript>
       <img alt="コードのレビュー担当者：rongyi" class="profile-img" height="384" loading="lazy" src="../assets/home/50aa7b2c8191c024/../shared/images/5dc6c4b1d8bfe0ac/avatar_rongyi.webp" width="384"/>
      </noscript>
      <br/>
      <b>
       rongyi
      </b>
      <br/>
      <sub>
       Rust
      </sub>
     </a>
    </div>
   </div>
  </div>
  <div style="margin: 2em auto;">
   <h3>
    貢献者
   </h3>
   <p>
    本書は、オープンソースコミュニティの 200 人以上の貢献者の協力により、改善を重ねています。時間と労力を注いでくださった皆さんに感謝します！
   </p>
   <a href="https://github.com/krahets/hello-algo/graphs/contributors">
    <img alt="貢献者の皆さん" data-home-src="https://contrib.rocks/image?repo=krahets/hello-algo&amp;max=300&amp;columns=12" decoding="async" style="width: 100%; max-width: 38.5em;"/>
    <noscript>
     <img alt="貢献者の皆さん" loading="lazy" src="https://contrib.rocks/image?repo=krahets/hello-algo&amp;max=300&amp;columns=12" style="width: 100%; max-width: 38.5em;"/>
    </noscript>
   </a>
  </div>
 </div>
</section>
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