title: What's the expected output for this program?
body: <p>What's the output and why? <code>folk() &amp;&amp; (!folk())</code> I'm not sure if the code after &amp;&amp; should be executed.</p>
  
  <pre><code>#include &lt;stdio.h&gt;
  #include &lt;unistd.h&gt;
  int main()
  {
    if(folk() &amp;&amp; (!folk())) {
      folk();
    }
    printf("Apple\n");
    fflush(NULL);
    return 0;
  }
  </code></pre>