title: How to print UINT64_t in gcc?
body: <p>Why this code is not working?</p>
  
  <pre><code>#include &lt;stdio.h&gt;
  main()
  {
      UINT64_t ram = 90;
      printf("%d""\n", ram);
  }
  </code></pre>
  
  <p>I got the Following errors:</p>
  
  <pre><code>In function \u2018main\u2019
  error: \u2018UINT64_t\u2019 undeclared (first use in this function)
  error: (Each undeclared identifier is reported only once
  error: for each function it appears in.)
  error: expected \u2018;\u2019 before \u2018ram\u2019
  </code></pre>