recursion_Golang (#33)

* recursion_Golang

* go_fmt

03_recursion/Golang/01_countdown/Countdown.go

@@ -0,0 +1,16 @@
+package main
+
+import "fmt"
+
+func countdown(i int) {
+	fmt.Println(i)
+	if i <= 0 {
+		return
+	} else {
+		countdown(i - 1)
+	}
+}
+
+func main() {
+	countdown(5)
+}

03_recursion/Golang/02_greet/Greet.go

@@ -0,0 +1,22 @@
+package main
+
+import "fmt"
+
+func greet2(name string) {
+	fmt.Println("how are you, " + name + "?")
+}
+
+func bye() {
+	fmt.Println("ok bye!")
+}
+
+func greet(name string) {
+	fmt.Println("hello, " + name + "!")
+	greet2(name)
+	fmt.Println("getting ready to say bye...")
+	bye()
+}
+
+func main() {
+	greet("adit")
+}

03_recursion/Golang/03_factorial/Factorial.go

@@ -0,0 +1,15 @@
+package main
+
+import "fmt"
+
+func fact(x int) int {
+	if x == 1 {
+		return 1
+	} else {
+		return x * fact(x-1)
+	}
+}
+
+func main() {
+	fmt.Println(fact(5))
+}