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<label class="md-nav__link md-nav__link--active" for="__toc">
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9.4. 小结
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<span class="md-nav__icon md-icon"></span>
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</label>
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<a href="./" class="md-nav__link md-nav__link--active">
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9.4. 小结
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</a>
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<nav class="md-nav md-nav--secondary" aria-label="目录">
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<label class="md-nav__title" for="__toc">
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<span class="md-nav__icon md-icon"></span>
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目录
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</label>
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="#941-q-a" class="md-nav__link">
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9.4.1. Q & A
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</a>
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</li>
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</ul>
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</nav>
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</li>
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@@ -1809,6 +1840,21 @@
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<label class="md-nav__title" for="__toc">
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<span class="md-nav__icon md-icon"></span>
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目录
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</label>
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="#941-q-a" class="md-nav__link">
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9.4.1. Q & A
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</a>
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</li>
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</ul>
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</nav>
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</div>
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</div>
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@@ -1844,6 +1890,20 @@
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<li>图的广度优先遍历是一种由近及远、层层扩张的搜索方式,通常借助队列实现。</li>
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<li>图的深度优先遍历是一种优先走到底、无路可走时再回溯的搜索方式,常基于递归来实现。</li>
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</ul>
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<h2 id="941-q-a">9.4.1. Q & A<a class="headerlink" href="#941-q-a" title="Permanent link">¶</a></h2>
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<div class="admonition question">
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<p class="admonition-title">路径的定义是顶点序列还是边序列?</p>
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<p>维基百科上不同语言版本的定义不一致:英文版是“路径是一个边序列”,而中文版是“路径是一个顶点序列”。以下是英文版原文:In graph theory, a path in a graph is a finite or infinite sequence of edges which joins a sequence of vertices.
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在本文中,路径被认为是一个边序列,而不是一个顶点序列。这是因为两个顶点之间可能存在多条边连接,此时每条边都对应一条路径。</p>
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</div>
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<div class="admonition question">
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<p class="admonition-title">非连通图中,是否会有无法遍历到的点?</p>
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<p>在非连通图中,从某个顶点出发,至少有一个顶点无法到达。遍历非连通图需要设置多个起点,以遍历到图的所有连通分量。</p>
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</div>
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<div class="admonition question">
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<p class="admonition-title">在邻接表中,“与该顶点相连的所有顶点”的顶点顺序是否有要求?</p>
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<p>可以是任意顺序。但在实际应用中,可能会需要按照指定规则来排序,比如按照顶点添加的次序、或者按照顶点值大小的顺序等等,这样可以有助于快速查找“带有某种极值”的顶点。</p>
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</div>
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