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@@ -2491,13 +2491,53 @@
</code></pre></div>
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<div class="tabbed-block">
<div class="highlight"><span class="filename">simple_hash.swift</span><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a><span class="p">[</span><span class="kd">class</span><span class="p">]{}</span><span class="o">-</span><span class="p">[</span><span class="kd">func</span><span class="p">]{</span><span class="n">addHash</span><span class="p">}</span>
<a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a>
<a id="__codelineno-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a><span class="p">[</span><span class="kd">class</span><span class="p">]{}</span><span class="o">-</span><span class="p">[</span><span class="kd">func</span><span class="p">]{</span><span class="n">mulHash</span><span class="p">}</span>
<a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></a>
<a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a><span class="p">[</span><span class="kd">class</span><span class="p">]{}</span><span class="o">-</span><span class="p">[</span><span class="kd">func</span><span class="p">]{</span><span class="n">xorHash</span><span class="p">}</span>
<a id="__codelineno-9-6" name="__codelineno-9-6" href="#__codelineno-9-6"></a>
<a id="__codelineno-9-7" name="__codelineno-9-7" href="#__codelineno-9-7"></a><span class="p">[</span><span class="kd">class</span><span class="p">]{}</span><span class="o">-</span><span class="p">[</span><span class="kd">func</span><span class="p">]{</span><span class="n">rotHash</span><span class="p">}</span>
<div class="highlight"><span class="filename">simple_hash.swift</span><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a><span class="cm">/* 加法哈希 */</span>
<a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a><span class="kd">func</span> <span class="nf">addHash</span><span class="p">(</span><span class="n">key</span><span class="p">:</span> <span class="nb">String</span><span class="p">)</span> <span class="p">-&gt;</span> <span class="nb">Int</span> <span class="p">{</span>
<a id="__codelineno-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a> <span class="kd">var</span> <span class="nv">hash</span> <span class="p">=</span> <span class="mi">0</span>
<a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></a> <span class="kd">let</span> <span class="nv">MODULUS</span> <span class="p">=</span> <span class="mi">1_000_000_007</span>
<a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a> <span class="k">for</span> <span class="n">c</span> <span class="k">in</span> <span class="n">key</span> <span class="p">{</span>
<a id="__codelineno-9-6" name="__codelineno-9-6" href="#__codelineno-9-6"></a> <span class="k">for</span> <span class="n">scalar</span> <span class="k">in</span> <span class="n">c</span><span class="p">.</span><span class="n">unicodeScalars</span> <span class="p">{</span>
<a id="__codelineno-9-7" name="__codelineno-9-7" href="#__codelineno-9-7"></a> <span class="n">hash</span> <span class="p">=</span> <span class="p">(</span><span class="n">hash</span> <span class="o">+</span> <span class="nb">Int</span><span class="p">(</span><span class="n">scalar</span><span class="p">.</span><span class="n">value</span><span class="p">))</span> <span class="o">%</span> <span class="n">MODULUS</span>
<a id="__codelineno-9-8" name="__codelineno-9-8" href="#__codelineno-9-8"></a> <span class="p">}</span>
<a id="__codelineno-9-9" name="__codelineno-9-9" href="#__codelineno-9-9"></a> <span class="p">}</span>
<a id="__codelineno-9-10" name="__codelineno-9-10" href="#__codelineno-9-10"></a> <span class="k">return</span> <span class="n">hash</span>
<a id="__codelineno-9-11" name="__codelineno-9-11" href="#__codelineno-9-11"></a><span class="p">}</span>
<a id="__codelineno-9-12" name="__codelineno-9-12" href="#__codelineno-9-12"></a>
<a id="__codelineno-9-13" name="__codelineno-9-13" href="#__codelineno-9-13"></a><span class="cm">/* 乘法哈希 */</span>
<a id="__codelineno-9-14" name="__codelineno-9-14" href="#__codelineno-9-14"></a><span class="kd">func</span> <span class="nf">mulHash</span><span class="p">(</span><span class="n">key</span><span class="p">:</span> <span class="nb">String</span><span class="p">)</span> <span class="p">-&gt;</span> <span class="nb">Int</span> <span class="p">{</span>
<a id="__codelineno-9-15" name="__codelineno-9-15" href="#__codelineno-9-15"></a> <span class="kd">var</span> <span class="nv">hash</span> <span class="p">=</span> <span class="mi">0</span>
<a id="__codelineno-9-16" name="__codelineno-9-16" href="#__codelineno-9-16"></a> <span class="kd">let</span> <span class="nv">MODULUS</span> <span class="p">=</span> <span class="mi">1_000_000_007</span>
<a id="__codelineno-9-17" name="__codelineno-9-17" href="#__codelineno-9-17"></a> <span class="k">for</span> <span class="n">c</span> <span class="k">in</span> <span class="n">key</span> <span class="p">{</span>
<a id="__codelineno-9-18" name="__codelineno-9-18" href="#__codelineno-9-18"></a> <span class="k">for</span> <span class="n">scalar</span> <span class="k">in</span> <span class="n">c</span><span class="p">.</span><span class="n">unicodeScalars</span> <span class="p">{</span>
<a id="__codelineno-9-19" name="__codelineno-9-19" href="#__codelineno-9-19"></a> <span class="n">hash</span> <span class="p">=</span> <span class="p">(</span><span class="mi">31</span> <span class="o">*</span> <span class="n">hash</span> <span class="o">+</span> <span class="nb">Int</span><span class="p">(</span><span class="n">scalar</span><span class="p">.</span><span class="n">value</span><span class="p">))</span> <span class="o">%</span> <span class="n">MODULUS</span>
<a id="__codelineno-9-20" name="__codelineno-9-20" href="#__codelineno-9-20"></a> <span class="p">}</span>
<a id="__codelineno-9-21" name="__codelineno-9-21" href="#__codelineno-9-21"></a> <span class="p">}</span>
<a id="__codelineno-9-22" name="__codelineno-9-22" href="#__codelineno-9-22"></a> <span class="k">return</span> <span class="n">hash</span>
<a id="__codelineno-9-23" name="__codelineno-9-23" href="#__codelineno-9-23"></a><span class="p">}</span>
<a id="__codelineno-9-24" name="__codelineno-9-24" href="#__codelineno-9-24"></a>
<a id="__codelineno-9-25" name="__codelineno-9-25" href="#__codelineno-9-25"></a><span class="cm">/* 异或哈希 */</span>
<a id="__codelineno-9-26" name="__codelineno-9-26" href="#__codelineno-9-26"></a><span class="kd">func</span> <span class="nf">xorHash</span><span class="p">(</span><span class="n">key</span><span class="p">:</span> <span class="nb">String</span><span class="p">)</span> <span class="p">-&gt;</span> <span class="nb">Int</span> <span class="p">{</span>
<a id="__codelineno-9-27" name="__codelineno-9-27" href="#__codelineno-9-27"></a> <span class="kd">var</span> <span class="nv">hash</span> <span class="p">=</span> <span class="mi">0</span>
<a id="__codelineno-9-28" name="__codelineno-9-28" href="#__codelineno-9-28"></a> <span class="kd">let</span> <span class="nv">MODULUS</span> <span class="p">=</span> <span class="mi">1_000_000_007</span>
<a id="__codelineno-9-29" name="__codelineno-9-29" href="#__codelineno-9-29"></a> <span class="k">for</span> <span class="n">c</span> <span class="k">in</span> <span class="n">key</span> <span class="p">{</span>
<a id="__codelineno-9-30" name="__codelineno-9-30" href="#__codelineno-9-30"></a> <span class="k">for</span> <span class="n">scalar</span> <span class="k">in</span> <span class="n">c</span><span class="p">.</span><span class="n">unicodeScalars</span> <span class="p">{</span>
<a id="__codelineno-9-31" name="__codelineno-9-31" href="#__codelineno-9-31"></a> <span class="n">hash</span> <span class="o">^=</span> <span class="nb">Int</span><span class="p">(</span><span class="n">scalar</span><span class="p">.</span><span class="n">value</span><span class="p">)</span>
<a id="__codelineno-9-32" name="__codelineno-9-32" href="#__codelineno-9-32"></a> <span class="p">}</span>
<a id="__codelineno-9-33" name="__codelineno-9-33" href="#__codelineno-9-33"></a> <span class="p">}</span>
<a id="__codelineno-9-34" name="__codelineno-9-34" href="#__codelineno-9-34"></a> <span class="k">return</span> <span class="n">hash</span> <span class="o">&amp;</span> <span class="n">MODULUS</span>
<a id="__codelineno-9-35" name="__codelineno-9-35" href="#__codelineno-9-35"></a><span class="p">}</span>
<a id="__codelineno-9-36" name="__codelineno-9-36" href="#__codelineno-9-36"></a>
<a id="__codelineno-9-37" name="__codelineno-9-37" href="#__codelineno-9-37"></a><span class="cm">/* 旋转哈希 */</span>
<a id="__codelineno-9-38" name="__codelineno-9-38" href="#__codelineno-9-38"></a><span class="kd">func</span> <span class="nf">rotHash</span><span class="p">(</span><span class="n">key</span><span class="p">:</span> <span class="nb">String</span><span class="p">)</span> <span class="p">-&gt;</span> <span class="nb">Int</span> <span class="p">{</span>
<a id="__codelineno-9-39" name="__codelineno-9-39" href="#__codelineno-9-39"></a> <span class="kd">var</span> <span class="nv">hash</span> <span class="p">=</span> <span class="mi">0</span>
<a id="__codelineno-9-40" name="__codelineno-9-40" href="#__codelineno-9-40"></a> <span class="kd">let</span> <span class="nv">MODULUS</span> <span class="p">=</span> <span class="mi">1_000_000_007</span>
<a id="__codelineno-9-41" name="__codelineno-9-41" href="#__codelineno-9-41"></a> <span class="k">for</span> <span class="n">c</span> <span class="k">in</span> <span class="n">key</span> <span class="p">{</span>
<a id="__codelineno-9-42" name="__codelineno-9-42" href="#__codelineno-9-42"></a> <span class="k">for</span> <span class="n">scalar</span> <span class="k">in</span> <span class="n">c</span><span class="p">.</span><span class="n">unicodeScalars</span> <span class="p">{</span>
<a id="__codelineno-9-43" name="__codelineno-9-43" href="#__codelineno-9-43"></a> <span class="n">hash</span> <span class="p">=</span> <span class="p">((</span><span class="n">hash</span> <span class="o">&lt;&lt;</span> <span class="mi">4</span><span class="p">)</span> <span class="o">^</span> <span class="p">(</span><span class="n">hash</span> <span class="o">&gt;&gt;</span> <span class="mi">28</span><span class="p">)</span> <span class="o">^</span> <span class="nb">Int</span><span class="p">(</span><span class="n">scalar</span><span class="p">.</span><span class="n">value</span><span class="p">))</span> <span class="o">%</span> <span class="n">MODULUS</span>
<a id="__codelineno-9-44" name="__codelineno-9-44" href="#__codelineno-9-44"></a> <span class="p">}</span>
<a id="__codelineno-9-45" name="__codelineno-9-45" href="#__codelineno-9-45"></a> <span class="p">}</span>
<a id="__codelineno-9-46" name="__codelineno-9-46" href="#__codelineno-9-46"></a> <span class="k">return</span> <span class="n">hash</span>
<a id="__codelineno-9-47" name="__codelineno-9-47" href="#__codelineno-9-47"></a><span class="p">}</span>
</code></pre></div>
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<div class="tabbed-block">
@@ -2724,7 +2764,29 @@
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><span class="filename">built_in_hash.swift</span><pre><span></span><code><a id="__codelineno-20-1" name="__codelineno-20-1" href="#__codelineno-20-1"></a>
<div class="highlight"><span class="filename">built_in_hash.swift</span><pre><span></span><code><a id="__codelineno-20-1" name="__codelineno-20-1" href="#__codelineno-20-1"></a><span class="kd">let</span> <span class="nv">num</span> <span class="p">=</span> <span class="mi">3</span>
<a id="__codelineno-20-2" name="__codelineno-20-2" href="#__codelineno-20-2"></a><span class="kd">let</span> <span class="nv">hashNum</span> <span class="p">=</span> <span class="n">num</span><span class="p">.</span><span class="n">hashValue</span>
<a id="__codelineno-20-3" name="__codelineno-20-3" href="#__codelineno-20-3"></a><span class="c1">// 整数 3 的哈希值为 9047044699613009734</span>
<a id="__codelineno-20-4" name="__codelineno-20-4" href="#__codelineno-20-4"></a>
<a id="__codelineno-20-5" name="__codelineno-20-5" href="#__codelineno-20-5"></a><span class="kd">let</span> <span class="nv">bol</span> <span class="p">=</span> <span class="kc">true</span>
<a id="__codelineno-20-6" name="__codelineno-20-6" href="#__codelineno-20-6"></a><span class="kd">let</span> <span class="nv">hashBol</span> <span class="p">=</span> <span class="n">bol</span><span class="p">.</span><span class="n">hashValue</span>
<a id="__codelineno-20-7" name="__codelineno-20-7" href="#__codelineno-20-7"></a><span class="c1">// 布尔量 true 的哈希值为 -4431640247352757451</span>
<a id="__codelineno-20-8" name="__codelineno-20-8" href="#__codelineno-20-8"></a>
<a id="__codelineno-20-9" name="__codelineno-20-9" href="#__codelineno-20-9"></a><span class="kd">let</span> <span class="nv">dec</span> <span class="p">=</span> <span class="mf">3.14159</span>
<a id="__codelineno-20-10" name="__codelineno-20-10" href="#__codelineno-20-10"></a><span class="kd">let</span> <span class="nv">hashDec</span> <span class="p">=</span> <span class="n">dec</span><span class="p">.</span><span class="n">hashValue</span>
<a id="__codelineno-20-11" name="__codelineno-20-11" href="#__codelineno-20-11"></a><span class="c1">// 小数 3.14159 的哈希值为 -2465384235396674631</span>
<a id="__codelineno-20-12" name="__codelineno-20-12" href="#__codelineno-20-12"></a>
<a id="__codelineno-20-13" name="__codelineno-20-13" href="#__codelineno-20-13"></a><span class="kd">let</span> <span class="nv">str</span> <span class="p">=</span> <span class="s">&quot;Hello 算法&quot;</span>
<a id="__codelineno-20-14" name="__codelineno-20-14" href="#__codelineno-20-14"></a><span class="kd">let</span> <span class="nv">hashStr</span> <span class="p">=</span> <span class="n">str</span><span class="p">.</span><span class="n">hashValue</span>
<a id="__codelineno-20-15" name="__codelineno-20-15" href="#__codelineno-20-15"></a><span class="c1">// 字符串 Hello 算法 的哈希值为 -7850626797806988787</span>
<a id="__codelineno-20-16" name="__codelineno-20-16" href="#__codelineno-20-16"></a>
<a id="__codelineno-20-17" name="__codelineno-20-17" href="#__codelineno-20-17"></a><span class="kd">let</span> <span class="nv">arr</span> <span class="p">=</span> <span class="p">[</span><span class="n">AnyHashable</span><span class="p">(</span><span class="mi">12836</span><span class="p">),</span> <span class="n">AnyHashable</span><span class="p">(</span><span class="s">&quot;小哈&quot;</span><span class="p">)]</span>
<a id="__codelineno-20-18" name="__codelineno-20-18" href="#__codelineno-20-18"></a><span class="kd">let</span> <span class="nv">hashTup</span> <span class="p">=</span> <span class="n">arr</span><span class="p">.</span><span class="n">hashValue</span>
<a id="__codelineno-20-19" name="__codelineno-20-19" href="#__codelineno-20-19"></a><span class="c1">// 数组 [AnyHashable(12836), AnyHashable(&quot;小哈&quot;)] 的哈希值为 -2308633508154532996</span>
<a id="__codelineno-20-20" name="__codelineno-20-20" href="#__codelineno-20-20"></a>
<a id="__codelineno-20-21" name="__codelineno-20-21" href="#__codelineno-20-21"></a><span class="kd">let</span> <span class="nv">obj</span> <span class="p">=</span> <span class="n">ListNode</span><span class="p">(</span><span class="n">x</span><span class="p">:</span> <span class="mi">0</span><span class="p">)</span>
<a id="__codelineno-20-22" name="__codelineno-20-22" href="#__codelineno-20-22"></a><span class="kd">let</span> <span class="nv">hashObj</span> <span class="p">=</span> <span class="n">obj</span><span class="p">.</span><span class="n">hashValue</span>
<a id="__codelineno-20-23" name="__codelineno-20-23" href="#__codelineno-20-23"></a><span class="c1">// 节点对象 utils.ListNode 的哈希值为 -2434780518035996159</span>
</code></pre></div>
</div>
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