A-M baby

Task/Man-or-boy-test/Java/man-or-boy-test.java

@@ -0,0 +1,27 @@
+public class ManOrBoy {
+    interface Arg {
+        public int run();
+    }
+
+    public static int A(final int k, final Arg x1, final Arg x2,
+                          final Arg x3, final Arg x4, final Arg x5) {
+        if (k <= 0)
+            return x4.run() + x5.run();
+        return new Arg() {
+            int m = k;
+            public int run() {
+                m--;
+                return A(m, this, x1, x2, x3, x4);
+            }
+        }.run();
+    }
+    public static Arg C(final int i) {
+        return new Arg() {
+            public int run() { return i; }
+        };
+    }
+
+    public static void main(String[] args) {
+        System.out.println(A(10, C(1), C(-1), C(-1), C(1), C(0)));
+    }
+}