mono/tests/ackermann.cs

   1 // $Id$
   2 // http://www.bagley.org/~doug/shootout/
   3
   4 public class ackermann {
   5
   6     public static int Main(string[] args) {
   7         int NUM = 8;
   8         if (args.Length > 0)
   9                 NUM = System.Int32.Parse (args [0]);
  10         //return Ack(3, NUM) != 2045? 1: 0;
  11         System.Console.WriteLine("Ack(3," + NUM + "): " + Ack(3, NUM));
  12         return 0;
  13     }
  14
  15     public static int Ack(int M, int N) {
  16         if (M == 0) return( N + 1 );
  17         if (N == 0) return( Ack(M - 1, 1) );
  18         return( Ack(M - 1, Ack(M, (N - 1))) );
  19     }
  20
  21 }