blob: c35d2d3cc955a73abbe7ff18fb37eb7c16dcb619 [file] [log] [blame]
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Dart version of two-argument Ackermann-Peter function.
import "package:expect/expect.dart";
class AckermannTest {
static int ack(int m, int n) {
return m == 0
? n + 1
: ((n == 0) ? ack(m - 1, 1) : ack(m - 1, ack(m, n - 1)));
}
static testMain() {
Expect.equals(253, ack(3, 5));
}
}
main() {
AckermannTest.testMain();
}