benchmark/bench/fibo.groovy (6 lines of code) (raw):

// $Id: fibo.java,v 1.3 2005-04-25 19:01:38 igouy-guest Exp $ // http://www.bagley.org/~doug/shootout/ int N = args[0] as int println fib(N) int fib(int n) { if (n < 2) return 1 return fib(n - 2) + fib(n - 1) }