title: Check if multidimensional matrix's last row contains vowels
body: <p>I'm trying to check if my 8x10 char matrix's last row contains vowels, and count them. The problem is that ".Contains" doesn't work and I can't figure out how to solve this without using a long "if".</p>
  
  <pre><code>class Program
  {
  
      static void Main(string[] args)
      {
          var matrix = new char[8, 10];
          Random rnd = new Random();
  
          for (int i = 0; i &lt; matrix.GetLength(0); i++)
          {
              for (int j = 0; j &lt; matrix.GetLength(1); j++)
              {
                  matrix[i, j] = (char)rnd.Next('a', 'z' + 1);
                  Console.Write(matrix[i, j] + " ");
              }
              Console.WriteLine();
          }
  
  
          Console.ReadKey();
      }
  }
  </code></pre>
  
  <p>}</p>