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User & Date: 顽雨沉风 on 2023-09-15 02:41:57
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2023-09-15
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<h1 class="title">三个绑定函数</h1>








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<h1 class="title">三个绑定函数</h1>
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<h1 class="title">MH-20210116</h1>
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<ul>
<li><a href="#原解" id="toc-原解"><span class="toc-section-number">1</span> 原解</a></li>
<li><a href="#衍生" id="toc-衍生"><span class="toc-section-number">2</span> 衍生</a></li>
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<h1 data-number="1" id="原解"><span class="header-section-number">1</span> 原解</h1>
<pre><code>1 * 5 = 5

2 * 4 = 8

3 * 3 = 9</code></pre>
<h1 data-number="2" id="衍生"><span class="header-section-number">2</span> 衍生</h1>
<p>给定一个由数个小正整数累加起来的大正整数，问这些小正整数的值为多少才能让这些小正整数的累乘值最大</p>
<p>非 3 即 2</p>
<p>解法：</p>
<p>可能的值有 1 ~ 正无穷</p>
<p>由指数爆炸性可知，只需要考虑 2 3 4</p>
<p>取 2 3 4 的最小公倍数 12</p>
<p>拆分 12 可得</p>
<pre><code>2 ^ 6 = 64

3 ^ 4 = 81

4 ^ 3 = 48</code></pre>
<p>至此，4 被淘汰</p>
<p>最优解为 3</p>
<p>但考虑到有些整数不能被 3 整数，故也需要 2</p>
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Added 解法参考/MH-20210116.md version [48a1adf6a3]. 























































































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% MH-20210116

# 原解

~~~
1 * 5 = 5

2 * 4 = 8

3 * 3 = 9
~~~

# 衍生

给定一个由数个小正整数累加起来的大正整数，问这些小正整数的值为多少才能让这些小正整数的累乘值最大

非 3 即 2

解法：

可能的值有 1 ~ 正无穷

由指数爆炸性可知，只需要考虑 2 3 4

取 2 3 4 的最小公倍数 12

拆分 12 可得

~~~
2 ^ 6 = 64

3 ^ 4 = 81

4 ^ 3 = 48
~~~

至此，4 被淘汰

最优解为 3

但考虑到有些整数不能被 3 整数，故也需要 2