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<li class="toctree-l1 current"><a class="current reference internal" href="#">イントロダクションIntro</a></li>
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<li class="toctree-l1"><a class="reference internal" href="tutorial.html">Tutorial</a></li>
<li class="toctree-l1"><a class="reference internal" href="tutorial.html#section-structure">Section Structure</a></li>
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<h1>イントロダクションIntro<a class="headerlink" href="#intro" title="このヘッドラインへのパーマリンク">¶</a></h1>
<p>ここはIntroです。<a class="reference internal" href="#isprime"><span class="std std-ref">images/isprime.c</span></a> に、ソースコードの例を示します。</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1">#include <stdio.h></span>
<span class="nb">int</span> <span class="n">isprime</span><span class="p">(</span><span class="nb">int</span> <span class="n">n</span><span class="p">){</span>
<span class="nb">int</span> <span class="n">i</span><span class="p">;</span>
<span class="k">for</span><span class="p">(</span><span class="n">i</span><span class="o">=</span><span class="mi">2</span><span class="p">;</span><span class="n">i</span><span class="o"><</span><span class="n">n</span><span class="o">/</span><span class="mi">2</span><span class="p">;</span><span class="n">i</span><span class="o">++</span><span class="p">){</span>
<span class="k">if</span> <span class="p">(</span><span class="n">n</span><span class="o">%</span><span class="n">i</span><span class="o">==</span><span class="mi">0</span><span class="p">)</span> <span class="k">return</span> <span class="n">i</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">return</span> <span class="mi">1</span><span class="p">;</span>
<span class="p">}</span>
<span class="nb">int</span> <span class="n">main</span><span class="p">(</span><span class="n">void</span><span class="p">){</span>
<span class="nb">int</span> <span class="n">num</span> <span class="p">;</span> <span class="nb">int</span> <span class="n">result</span><span class="p">;</span>
<span class="n">printf</span><span class="p">(</span><span class="s2">"input num</span><span class="se">\n</span><span class="s2">"</span><span class="p">)</span> <span class="p">;</span>
<span class="n">scanf</span><span class="p">(</span><span class="s2">"</span><span class="si">%d</span><span class="s2">"</span><span class="p">,</span> <span class="o">&</span><span class="n">num</span><span class="p">);</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">isprime</span><span class="p">(</span><span class="n">num</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="n">result</span><span class="o">==</span><span class="mi">1</span><span class="p">)</span> <span class="n">printf</span><span class="p">(</span><span class="s2">"</span><span class="si">%d</span><span class="s2"> is prime number (素数)</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">num</span><span class="p">);</span>
<span class="k">else</span> <span class="n">printf</span><span class="p">(</span><span class="s2">"</span><span class="si">%d</span><span class="s2"> is not prime. </span><span class="si">%d</span><span class="s2"> is a divisor.</span><span class="se">\n</span><span class="s2"> "</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">result</span><span class="p">);</span>
<span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">}</span>
</pre></div>
</div>
<div class="literal-block-wrapper docutils container" id="isprime">
<div class="code-block-caption"><span class="caption-text">images/isprime.c</span><a class="headerlink" href="#isprime" title="このコードへのパーマリンク">¶</a></div>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span> <span class="cpf"><stdio.h></span><span class="cp"></span>
<span class="kt">int</span> <span class="nf">isprime</span><span class="p">(</span><span class="kt">int</span> <span class="n">n</span><span class="p">){</span>
<span class="kt">int</span> <span class="n">i</span><span class="p">;</span>
<span class="k">for</span><span class="p">(</span><span class="n">i</span><span class="o">=</span><span class="mi">2</span><span class="p">;</span><span class="n">i</span><span class="o"><</span><span class="n">n</span><span class="o">/</span><span class="mi">2</span><span class="p">;</span><span class="n">i</span><span class="o">++</span><span class="p">){</span>
<span class="k">if</span> <span class="p">(</span><span class="n">n</span><span class="o">%</span><span class="n">i</span><span class="o">==</span><span class="mi">0</span><span class="p">)</span> <span class="k">return</span> <span class="n">i</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">return</span> <span class="mi">1</span><span class="p">;</span>
<span class="p">}</span>
<span class="kt">int</span> <span class="nf">main</span><span class="p">(</span><span class="kt">void</span><span class="p">){</span>
<span class="kt">int</span> <span class="n">num</span> <span class="p">;</span> <span class="kt">int</span> <span class="n">result</span><span class="p">;</span>
<span class="hll"> <span class="n">printf</span><span class="p">(</span><span class="s">"input num</span><span class="se">\n</span><span class="s">"</span><span class="p">)</span> <span class="p">;</span>
</span>
<span class="n">scanf</span><span class="p">(</span><span class="s">"%d"</span><span class="p">,</span> <span class="o">&</span><span class="n">num</span><span class="p">);</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">isprime</span><span class="p">(</span><span class="n">num</span><span class="p">);</span>
<span class="hll"> <span class="k">if</span> <span class="p">(</span><span class="n">result</span><span class="o">==</span><span class="mi">1</span><span class="p">)</span> <span class="n">printf</span><span class="p">(</span><span class="s">"%d is prime number (素数)</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">num</span><span class="p">);</span>
</span> <span class="k">else</span> <span class="n">printf</span><span class="p">(</span><span class="s">"%d is not prime. %d is a divisor.</span><span class="se">\n</span><span class="s"> "</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">result</span><span class="p">);</span>
<span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">}</span>
</pre></div>
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