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Combinatorics
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‎README.md‎

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@@ -531,8 +531,7 @@ shuffle(<list>)
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<int> = <int> & <int> # And
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<int> = <int> | <int> # Or
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<int> = <int> ^ <int> # Xor (0 if both bits equal)
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<int> = <int> << n_bits # Shift left
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<int> = <int> >> n_bits # Shift right
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<int> = <int> << n_bits # Shift left (>> for right)
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<int> = ~<int> # Compliment (flips bits)
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```
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@@ -560,7 +559,8 @@ from itertools import product, combinations, combinations_with_replacement, perm
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```python
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>>> combinations('abc', 2)
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[('a', 'b'), ('a', 'c'), ('b', 'c')]
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[('a', 'b'), ('a', 'c'),
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('b', 'c')]
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```
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```python

‎index.html‎

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<div><h3 id="bitwiseoperators">Bitwise Operators</h3><pre><code class="python language-python hljs">&lt;int&gt; = &lt;int&gt; &amp; &lt;int&gt; <span class="hljs-comment"># And</span>
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&lt;int&gt; = &lt;int&gt; | &lt;int&gt; <span class="hljs-comment"># Or</span>
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&lt;int&gt; = &lt;int&gt; ^ &lt;int&gt; <span class="hljs-comment"># Xor (0 if both bits equal)</span>
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&lt;int&gt; = &lt;int&gt; &lt;&lt; n_bits <span class="hljs-comment"># Shift left</span>
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&lt;int&gt; = &lt;int&gt; &gt;&gt; n_bits <span class="hljs-comment"># Shift right</span>
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&lt;int&gt; = &lt;int&gt; &lt;&lt; n_bits <span class="hljs-comment"># Shift left (&gt;&gt; for right)</span>
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&lt;int&gt; = ~&lt;int&gt; <span class="hljs-comment"># Compliment (flips bits)</span>
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</code></pre></div>
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@@ -627,7 +626,8 @@
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(<span class="hljs-string">'b'</span>, <span class="hljs-string">'1'</span>), (<span class="hljs-string">'b'</span>, <span class="hljs-string">'2'</span>)]
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</code></pre>
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<pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>combinations(<span class="hljs-string">'abc'</span>, <span class="hljs-number">2</span>)
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[(<span class="hljs-string">'a'</span>, <span class="hljs-string">'b'</span>), (<span class="hljs-string">'a'</span>, <span class="hljs-string">'c'</span>), (<span class="hljs-string">'b'</span>, <span class="hljs-string">'c'</span>)]
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[(<span class="hljs-string">'a'</span>, <span class="hljs-string">'b'</span>), (<span class="hljs-string">'a'</span>, <span class="hljs-string">'c'</span>),
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(<span class="hljs-string">'b'</span>, <span class="hljs-string">'c'</span>)]
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</code></pre>
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<pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>combinations_with_replacement(<span class="hljs-string">'abc'</span>, <span class="hljs-number">2</span>)
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[(<span class="hljs-string">'a'</span>, <span class="hljs-string">'a'</span>), (<span class="hljs-string">'a'</span>, <span class="hljs-string">'b'</span>), (<span class="hljs-string">'a'</span>, <span class="hljs-string">'c'</span>),

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