title: What is signed integer overflow?
body: <p>I'm learning C from CS50. When I run my code, it says 'signed integer overflow'.</p>
  
  <pre><code>#include &lt;stdio.h&gt;
  #include &lt;cs50.h&gt;
  
  int main(void)
  {
      int x = 41;
      int c = 0;
      while(x&gt;=25)
      {
        c = c+1;
      }
  
      printf("%i\n", c);
  }
  </code></pre>
  
  <p>Can someone explain what that means?</p>