title: finding a value in a 2D Array
body: <pre><code>   0 1 2
  - - - - -
  0| 1 2 3
  1| 4 5 6
  2| 7 8 9
  </code></pre>
  
  <p>How could I determine the coordinates of any number in this 2 dimensional array?</p>
  
  <p>For example if I want to know the coordinates of the number 9 it will be <code>[2][2]</code>.</p>
  
  <p>How could I do this through a code on a C++ program ?</p>