title: Quickest way to determine if a 2D array contains an element?
body: <p>Let's assume that I've got 2d array like :</p>
  
  <pre><code>int[,] my_array = new int[100, 100];
  </code></pre>
  
  <p>The array is filled with ints. What would be the quickest way to check if a target-value element is contained within the array ? </p>
  
  <p>(* this is not homework, I'm trying to come up with most efficient solution for this case)</p>