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第 0 章   はじめに
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第 1 章   アルゴリズムとの出会い
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第 1 章   アルゴリズムとの出会い
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1.1   アルゴリズムはどこにでもある
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1.2   アルゴリズムとは
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1.3   まとめ
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第 2 章   計算量の解析
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第 2 章   計算量の解析
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2.1   アルゴリズムの効率の評価
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2.2   反復と再帰
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2.3   時間計算量
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2.4   空間計算量
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2.5   まとめ
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2.6   練習問題
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第 3 章   データ構造
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第 3 章   データ構造
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3.1   データ構造の分類
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3.2   基本データ型
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3.3   数値の符号化 *
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3.4   文字エンコーディング *
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3.5   まとめ
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3.6   練習問題
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第 4 章   配列と連結リスト
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第 4 章   配列と連結リスト
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4.1   配列
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4.2   連結リスト
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4.3   リスト
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4.4   メモリとキャッシュ *
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4.5   まとめ
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4.6   練習問題
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第 5 章   スタックとキュー
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第 5 章   スタックとキュー
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5.1   スタック
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5.2   キュー
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5.3   両端キュー
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5.4   まとめ
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5.5   練習問題
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第 6 章   ハッシュテーブル
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第 6 章   ハッシュテーブル
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6.1   ハッシュテーブル
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6.2   ハッシュ衝突
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6.3   ハッシュアルゴリズム
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6.4   まとめ
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6.5   練習問題
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第 7 章   木
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第 7 章   木
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7.1   二分木
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7.2   二分木の走査
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7.3   二分木の配列表現
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7.4   二分探索木
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7.5   AVL 木 *
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7.6   まとめ
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7.7   練習問題
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第 8 章   ヒープ
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第 8 章   ヒープ
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8.1   ヒープ
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8.2   ヒープの構築
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8.3   Top-k 問題
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<span class="md-ellipsis">
8.4   まとめ
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8.5   練習問題
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第 9 章   グラフ
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第 9 章   グラフ
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<span class="md-ellipsis">
9.1   グラフ
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<span class="md-ellipsis">
9.2   グラフの基本操作
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9.3   グラフの走査
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9.4   まとめ
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9.5   練習問題
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第 10 章   探索
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第 10 章   探索
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10.1   二分探索
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<span class="md-ellipsis">
10.2   二分探索で挿入位置を探す
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10.3   二分探索で境界を探す
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10.4   ハッシュを使った最適化
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<a class="md-nav__link" href="../../chapter_searching/searching_algorithm_revisited/">
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10.5   探索アルゴリズムを改めて考える
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<a class="md-nav__link" href="../../chapter_searching/summary/">
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10.6   まとめ
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10.7   練習問題
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第 11 章   ソート
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第 11 章   ソート
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11.1   ソートアルゴリズム
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11.2   選択ソート
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11.3   バブルソート
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11.4   挿入ソート
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11.5   クイックソート
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11.6   マージソート
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<a class="md-nav__link" href="../../chapter_sorting/heap_sort/">
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11.7   ヒープソート
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<a class="md-nav__link" href="../../chapter_sorting/bucket_sort/">
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11.8   バケットソート
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11.9   カウントソート
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<li class="md-nav__item">
<a class="md-nav__link" href="../../chapter_sorting/radix_sort/">
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11.10   基数ソート
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<a class="md-nav__link" href="../../chapter_sorting/summary/">
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11.11   まとめ
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11.12   練習問題
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第 12 章   分割統治
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第 12 章   分割統治
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12.1   分割統治アルゴリズム
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12.2   分割統治による探索戦略
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12.3   二分木の構築問題
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12.4   ハノイの塔の問題
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12.5   まとめ
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12.6   練習問題
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第 13 章   バックトラッキング
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第 13 章   バックトラッキング
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13.1   バックトラッキングアルゴリズム
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13.2   順列列挙問題
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13.3   部分集合和問題
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13.4   n クイーン問題
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13.5   まとめ
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13.6   練習問題
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第 14 章   動的計画法
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第 14 章   動的計画法
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14.1   動的計画法への第一歩
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<a class="md-nav__link" href="../../chapter_dynamic_programming/dp_problem_features/">
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14.2   動的計画法の問題の特徴
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14.3   動的計画法の解き方
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14.4   0-1 ナップサック問題
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14.5   個数制限なしナップサック問題
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14.6   編集距離問題
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14.7   まとめ
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14.8   練習問題
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第 15 章   貪欲法
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第 15 章   貪欲法
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15.1   貪欲アルゴリズム
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15.2   分割可能ナップサック問題
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15.3   最大容量問題
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<h1 id="162">16.2   一緒に本書を作りましょう<a class="headerlink" href="#162" title="この見出しへのリンク"></a></h1>
<p>著者の力が及ばず、本書には見落としや誤りがあるかもしれません。どうかご了承ください。誤字脱字、リンク切れ、内容の欠落、曖昧な表現、わかりにくい説明、不適切な文章構成などに気づいたら、修正にご協力ください。読者の皆さんに、よりよい学習教材を届けることにつながります。</p>
<p>オープンソースコミュニティへの惜しみない貢献に感謝し、すべての<a href="https://github.com/krahets/hello-algo/graphs/contributors">執筆協力者</a>の GitHub ID を、原書のリポジトリ、Web 版、および既存の PDF 版のトップページに掲載します。</p>
<div class="admonition success">
<p class="admonition-title">オープンソースの魅力</p>
<p>紙の書籍は次の印刷までに長い時間がかかることが多く、内容の更新が容易ではありません。</p>
<p>一方、オープンソースである本書なら、数日、場合によっては数時間で内容を更新できます。</p>
</div>
<h3 id="1">1.   内容の小さな修正<a class="headerlink" href="#1" title="この見出しへのリンク"></a></h3>
<p>図 16-3 のように、各ページの右上に「編集アイコン」があります。次の手順で文章やコードを修正できます。</p>
<ol>
<li>「編集アイコン」をクリックします。「このリポジトリを Fork する必要がある」という案内が表示されたら、操作に同意してください。</li>
<li>Markdown ソースファイルを編集し、内容が正しいか確認します。書式もできるだけ統一してください。</li>
<li>ページ下部に変更内容の説明を入力し、「Propose file change」ボタンをクリックします。移動先のページで「Create pull request」ボタンをクリックすると、プルリクエストを作成できます。</li>
</ol>
<p><img alt="ページの編集ボタン" class="animation-figure" src="../contribution.assets/edit_markdown.png"/></p>
<p align="center"> 図 16-3   ページの編集ボタン </p>
<p>画像は直接編集できません。新しい <a href="https://github.com/krahets/hello-algo/issues">Issue</a> を作成するか、コメントで問題をお知らせください。できるだけ早く描き直して差し替えます。</p>
<h3 id="2">2.   新しい内容の作成<a class="headerlink" href="#2" title="この見出しへのリンク"></a></h3>
<p>コードをほかのプログラミング言語に移植したり、記事の内容を充実させたりするなど、このオープンソースプロジェクトへの参加に関心がある方は、次の Pull Request の手順に従ってください。</p>
<ol>
<li>GitHub にログインし、本書の<a href="https://github.com/krahets/hello-algo">コードリポジトリ</a>を自分のアカウントに Fork します。</li>
<li>Fork したリポジトリのページを開き、<code>git clone</code> コマンドでローカルにクローンします。</li>
<li>ローカルで内容を作成し、十分なテストを行ってコードの正しさを確認します。</li>
<li>ローカルの変更を Commit し、リモートリポジトリに Push します。</li>
<li>リポジトリのページを再読み込みし、「Create pull request」ボタンをクリックすると、プルリクエストを作成できます。</li>
</ol>
<h3 id="3-docker">3.   Docker での起動<a class="headerlink" href="#3-docker" title="この見出しへのリンク"></a></h3>
<p><code>hello-algo</code> のルートディレクトリで次の Docker スクリプトを実行すると、<code>http://localhost:8000/ja/</code> から本プロジェクトの日本語版にアクセスできます。</p>
<div class="highlight"><pre><span></span><code><a href="#__codelineno-0-1" id="__codelineno-0-1" name="__codelineno-0-1"></a>docker-compose<span class="w"> </span>up<span class="w"> </span>-d
</code></pre></div>
<p>次のコマンドで起動した環境を削除できます。</p>
<div class="highlight"><pre><span></span><code><a href="#__codelineno-1-1" id="__codelineno-1-1" name="__codelineno-1-1"></a>docker-compose<span class="w"> </span>down
</code></pre></div>
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