title: How do I pick values from an array without having repeating values in C#
body: <ul>
  <li>I am using <code>C#</code> and I have an array that stores 20 <code>integers</code>. </li>
  <li>I have 3 variables and I would like to assign them all to randomly-picked integers from the <code>array</code>, but I have to make it so that the values picked from the <code>array</code> are not the same. </li>
  <li>Is there any way to do this other than by using a lot of <code>if statements</code>?</li>
  </ul>