Time for an 2014 update…

Task/Man-or-boy-test/Deja-Vu/man-or-boy-test.djv

@@ -0,0 +1,13 @@
+a k x1 x2 x3 x4 x5:
+	local b:
+		set :k -- k
+		a k @b @x1 @x2 @x3 @x4
+	if <= k 0:
+		+ x4 x5
+	else:
+		b
+local x i:
+	labda:
+		i
+
+!. a 10 x 1 x -1 x -1 x 1 x 0

Task/Man-or-boy-test/Groovy/man-or-boy-test-1.groovy

@@ -0,0 +1,8 @@
+def a; a = { k, x1, x2, x3, x4, x5 ->
+    def b; b = {
+        a (--k, b, x1, x2, x3, x4)
+    }
+    k <= 0 ? x4() + x5() : b()
+}
+
+def x = { n -> { it -> n } }

Task/Man-or-boy-test/Groovy/man-or-boy-test-2.groovy

@@ -0,0 +1 @@
+println (a(10, x(1), x(-1), x(-1), x(1), x(0)))

Task/Man-or-boy-test/Groovy/man-or-boy-test-3.groovy

@@ -0,0 +1,3 @@
+(0..20).each { k ->
+    printf ("%3d: %7d\n", k, a(k, x(1), x(-1), x(-1), x(1), x(0)))
+}