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<div><h1 class="main-title">array min</h1></div>
<a href="javascript:history.back()">←</a>
<a href="/">🏠</a>
<h2 id="builtin">Builtin</h2>
<p>Finding the minimum value in a list is easily done using the builtin <code>min()</code></p>
<div class="highlight"><pre><span></span><span class="linenos">1</span><span class="nb">min</span><span class="p">([</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">])</span> <span class="c1"># 0</span>
</pre></div>
<h2 id="reduce">Reduce</h2>
<p>This is very similar to using <code>reduce</code>:</p>
<div class="highlight"><pre><span></span><span class="linenos">1</span><span class="kn">from</span> <span class="nn">functools</span> <span class="kn">import</span> <span class="n">reduce</span>
<span class="linenos">2</span><span class="n">A</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">]</span>
<span class="linenos">3</span><span class="n">m</span> <span class="o">=</span> <span class="n">reduce</span><span class="p">(</span><span class="k">lambda</span> <span class="n">a</span><span class="p">,</span> <span class="n">x</span><span class="p">:</span> <span class="nb">min</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">x</span><span class="p">),</span> <span class="n">A</span><span class="p">)</span>
<span class="linenos">4</span><span class="nb">print</span><span class="p">(</span><span class="n">m</span><span class="p">)</span>
</pre></div>
<p>Output:</p>
<div class="highlight"><pre><span></span><span class="linenos">1</span><span class="mi">0</span>
</pre></div>
<h2 id="iterative">Iterative</h2>
<p>However, very often you'll want to do so iteratively, to use the <em>min up until this <code>v</code></em> for example.</p>
<div class="highlight"><pre><span></span><span class="linenos">1</span><span class="n">A</span> <span class="o">=</span> <span class="p">[</span><span class="mi">3</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">]</span>
<span class="linenos">2</span><span class="n">m</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="s1">'inf'</span><span class="p">)</span>
<span class="linenos">3</span><span class="k">for</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">A</span><span class="p">:</span>
<span class="linenos">4</span> <span class="n">m</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="n">m</span><span class="p">)</span>
<span class="linenos">5</span> <span class="nb">print</span><span class="p">(</span><span class="n">m</span><span class="p">,</span> <span class="n">end</span><span class="o">=</span><span class="s1">' '</span><span class="p">)</span>
</pre></div>
<p>Output:</p>
<div class="highlight"><pre><span></span><span class="linenos">1</span><span class="mi">3</span> <span class="mi">2</span> <span class="mi">1</span> <span class="mi">1</span> <span class="mi">1</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">0</span> <span class="mi">0</span> <span class="mi">0</span> <span class="mi">0</span> <span class="mi">0</span> <span class="mi">0</span>
</pre></div>
<p>Notice the use of <code>float('inf')</code> . It can feel a little counterintuitive mixing types, but this is easier to remember than <code>sys.maxsize</code>.</p>
<h2 id="see-also">See Also</h2>
<p>[[array max]]</p>
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