push all exercices

ch3/1/ch3_1.go

@@ -0,0 +1,13 @@
+package main
+
+import "fmt"
+
+func main() {
+	var greetings = []string{"Hello", "Hola", "नमस्कार", "こんにちは", "Привіт"}
+	var a = greetings[:2]
+	var b = greetings[1:4]
+	var c = greetings[3:]
+	fmt.Println(a)
+	fmt.Println(b)
+	fmt.Println(c)
+}

ch3/1/go.mod

@@ -0,0 +1,3 @@
+module ch3_1
+
+go 1.25.0