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<a href="/2020/12/10/0-%E9%9D%A2%E8%AF%95%E6%9D%82%E9%A1%B9/" class="post-title-link" itemprop="url">0-面试杂项</a>
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<time title="创建时间：2020-12-10 00:06:27 / 修改时间：00:09:18" itemprop="dateCreated datePublished" datetime="2020-12-10T00:06:27+08:00">2020-12-10</time>
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<h3 id="个人面试题的一些总结"><a href="#个人面试题的一些总结" class="headerlink" title="个人面试题的一些总结"></a>个人面试题的一些总结</h3><p>大部分来自于网络上各路大佬的摘抄。</p>
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<time title="创建时间：2020-10-31 10:00:00 / 修改时间：10:04:11" itemprop="dateCreated datePublished" datetime="2020-10-31T10:00:00+08:00">2020-10-31</time>
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<h3 id="tmux"><a href="#tmux" class="headerlink" title="tmux"></a>tmux</h3><p><strong>会话>窗口>窗格</strong><br>所有快捷键都是<code>ctrl + b</code>打头</p>
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<h3 id="取模"><a href="#取模" class="headerlink" title="取模"></a>取模</h3><p>在加减乘除运算结果后，因为最终可能超出数据的表达范围，所以需要进行取模操作，但是有可能在运算中途就已经超出了范围，所以要进行一些运算上的优化<br></p>
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<a href="/2020/10/16/9-git%E6%8C%87%E4%BB%A4/" class="post-title-link" itemprop="url">9-git指令</a>
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<h3 id="git指令"><a href="#git指令" class="headerlink" title="git指令"></a>git指令</h3><p>总结自<a target="_blank" rel="noopener" href="https://www.liaoxuefeng.com/wiki/896043488029600">Git教程-廖雪峰的官方网站</a><br></p>
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<a href="/2020/09/21/8-%E6%8E%92%E5%88%97%E7%BB%84%E5%90%88%E6%95%B0/" class="post-title-link" itemprop="url">8-排列组合数</a>
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<h3 id="排列组合"><a href="#排列组合" class="headerlink" title="排列组合"></a>排列组合</h3><p><strong>排列</strong>就是指从给定个数的元素中取出指定个数的元素进行排序。<br><strong>组合</strong>则是指从给定个数的元素中仅仅取出指定个数的元素，不考虑排序。<br></p>
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<a href="/2020/09/21/7-%E5%B9%B6%E6%9F%A5%E9%9B%86unoion-find/" class="post-title-link" itemprop="url">7-并查集union-find</a>
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<h3 id="并查集union-find-disjoin-set"><a href="#并查集union-find-disjoin-set" class="headerlink" title="并查集union find/disjoin set"></a>并查集union find/disjoin set</h3><p>并查集是一种树型的数据结构，用于处理一些不相交集合（Disjoint Sets）的合并及查询问题。常常在使用中以森林来表示。用于解决无向图中的环的问题。<br></p>
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<h3 id="最小生成树MST"><a href="#最小生成树MST" class="headerlink" title="最小生成树MST"></a>最小生成树MST</h3><p>一个有 n 个结点的连通图的生成树是原图的极小连通子图，且包含原图中的所有 n 个结点，并且有保持图连通的最少的边。<br></p>
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<h3 id="树状数组BIT"><a href="#树状数组BIT" class="headerlink" title="树状数组BIT"></a>树状数组BIT</h3><p>设计目标：给定一个长度为n的数组，实现两个功能</p>
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<li>将第x个数加上k，即<strong>单点修改O(logn)</strong></li>
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<h3 id="快速幂-矩阵快速幂"><a href="#快速幂-矩阵快速幂" class="headerlink" title="快速幂-矩阵快速幂"></a>快速幂-矩阵快速幂</h3><p>快速幂就是快速算底数的n次幂。其时间复杂度为 O(log₂N)， 与朴素的O(N)相比效率有了极大的提高<br></p>
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<h3 id="字符串哈希"><a href="#字符串哈希" class="headerlink" title="字符串哈希"></a>字符串哈希</h3><p>字符串长度过大时导致查找效率较低，将字符串映射成数字能有效提升查找效率<br></p>
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