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krahets
2023-09-22 13:08:10 +08:00
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10.2 &nbsp; 二分查找插入点
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10.3 &nbsp; 二分查找边界
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第 12 章 &nbsp; 分治
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12.1 &nbsp; 分治算法
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12.2 &nbsp; 分治搜索策略
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12.3 &nbsp; 构建树问题
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12.4 &nbsp; 汉诺塔问题
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12.5 &nbsp; 小结
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第 14 章 &nbsp; 动态规划
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14.1 &nbsp; 初探动态规划
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14.2 &nbsp; DP 问题特性
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14.3 &nbsp; DP 解题思路
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14.4 &nbsp; 0-1 背包问题
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14.5 &nbsp; 完全背包问题
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14.6 &nbsp; 编辑距离问题
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14.7 &nbsp; 小结
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第 15 章 &nbsp; 贪心
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15.1 &nbsp; 贪心算法
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15.2 &nbsp; 分数背包问题
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15.3 &nbsp; 最大容量问题
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15.4 &nbsp; 最大切分乘积问题
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15.5 &nbsp; 小结
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<div class="tabbed-set tabbed-alternate" data-tabs="1:5"><input checked="checked" id="__tabbed_1_1" name="__tabbed_1" type="radio" /><input id="__tabbed_1_2" name="__tabbed_1" type="radio" /><input id="__tabbed_1_3" name="__tabbed_1" type="radio" /><input id="__tabbed_1_4" name="__tabbed_1" type="radio" /><input id="__tabbed_1_5" name="__tabbed_1" type="radio" /><div class="tabbed-labels"><label for="__tabbed_1_1">&lt;1&gt;</label><label for="__tabbed_1_2">&lt;2&gt;</label><label for="__tabbed_1_3">&lt;3&gt;</label><label for="__tabbed_1_4">&lt;4&gt;</label><label for="__tabbed_1_5">&lt;5&gt;</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<p><img alt="查字典步骤" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step1.png" /></p>
<p><a class="glightbox" href="../algorithms_are_everywhere.assets/binary_search_dictionary_step1.png" data-type="image" data-width="100%" data-height="auto" data-desc-position="bottom"><img alt="查字典步骤" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step1.png" /></a></p>
</div>
<div class="tabbed-block">
<p><img alt="binary_search_dictionary_step2" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step2.png" /></p>
<p><a class="glightbox" href="../algorithms_are_everywhere.assets/binary_search_dictionary_step2.png" data-type="image" data-width="100%" data-height="auto" data-desc-position="bottom"><img alt="binary_search_dictionary_step2" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step2.png" /></a></p>
</div>
<div class="tabbed-block">
<p><img alt="binary_search_dictionary_step3" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step3.png" /></p>
<p><a class="glightbox" href="../algorithms_are_everywhere.assets/binary_search_dictionary_step3.png" data-type="image" data-width="100%" data-height="auto" data-desc-position="bottom"><img alt="binary_search_dictionary_step3" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step3.png" /></a></p>
</div>
<div class="tabbed-block">
<p><img alt="binary_search_dictionary_step4" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step4.png" /></p>
<p><a class="glightbox" href="../algorithms_are_everywhere.assets/binary_search_dictionary_step4.png" data-type="image" data-width="100%" data-height="auto" data-desc-position="bottom"><img alt="binary_search_dictionary_step4" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step4.png" /></a></p>
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<p><img alt="binary_search_dictionary_step5" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step5.png" /></p>
<p><a class="glightbox" href="../algorithms_are_everywhere.assets/binary_search_dictionary_step5.png" data-type="image" data-width="100%" data-height="auto" data-desc-position="bottom"><img alt="binary_search_dictionary_step5" src="../algorithms_are_everywhere.assets/binary_search_dictionary_step5.png" /></a></p>
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@@ -3444,7 +3279,7 @@
<li>在无序部分抽出一张扑克牌,插入至有序部分的正确位置;完成后最左 2 张扑克已经有序。</li>
<li>不断循环步骤 <code>2.</code> ,每一轮将一张扑克牌从无序部分插入至有序部分,直至所有扑克牌都有序。</li>
</ol>
<p><img alt="扑克排序步骤" src="../algorithms_are_everywhere.assets/playing_cards_sorting.png" /></p>
<p><a class="glightbox" href="../algorithms_are_everywhere.assets/playing_cards_sorting.png" data-type="image" data-width="100%" data-height="auto" data-desc-position="bottom"><img alt="扑克排序步骤" src="../algorithms_are_everywhere.assets/playing_cards_sorting.png" /></a></p>
<p align="center"> 图 1-2 &nbsp; 扑克排序步骤 </p>
<p>上述整理扑克牌的方法本质上是“插入排序”算法,它在处理小型数据集时非常高效。许多编程语言的排序库函数中都存在插入排序的身影。</p>
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<li>从剩余可选项中拿出最大的 <span class="arithmatex">\(1\)</span> 元,剩余 <span class="arithmatex">\(1 - 1 = 0\)</span> 元。</li>
<li>完成找零,方案为 <span class="arithmatex">\(20 + 10 + 1 = 31\)</span> 元。</li>
</ol>
<p><img alt="货币找零过程" src="../algorithms_are_everywhere.assets/greedy_change.png" /></p>
<p><a class="glightbox" href="../algorithms_are_everywhere.assets/greedy_change.png" data-type="image" data-width="100%" data-height="auto" data-desc-position="bottom"><img alt="货币找零过程" src="../algorithms_are_everywhere.assets/greedy_change.png" /></a></p>
<p align="center"> 图 1-3 &nbsp; 货币找零过程 </p>
<p>在以上步骤中,我们每一步都采取当前看来最好的选择(尽可能用大面额的货币),最终得到了可行的找零方案。从数据结构与算法的角度看,这种方法本质上是“贪心”算法。</p>
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