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/* ------------------------------------------------------------------ */
/* The Great Computer Language Shootout */
/* http://shootout.alioth.debian.org/ */
/* */
/* Contributed by Anthony Borla */
/* ------------------------------------------------------------------ */
object takfp
{
def main(args: Array[String])
{
var n = Integer.parseInt(args(0));
System.out.println(tak(n * 3.0f, n * 2.0f, n * 1.0f));
}
final def tak(x: Float, y: Float, z: Float): Float =
{
if (y >= x) return z;
return tak(tak(x - 1.0f, y, z), tak(y - 1.0f, z, x), tak(z - 1.0f, x, y));
}
}
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