add: for statement loop exercises

13-loops/exercises/01-sum-the-numbers/solution/main.go

@@ -0,0 +1,20 @@
+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	var sum int
+	for i := 1; i <= 10; i++ {
+		sum += i
+	}
+	fmt.Println("Sum:", sum)
+}