add: printf exercises

07-printf/exercises/10-print-your-fullname/main.go

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+// 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
+
+// ---------------------------------------------------------
+// EXERCISE: Print Your Fullname
+//
+//  1. Get your name and lastname from the command-line
+//  2. Print them using Printf
+//
+// EXAMPLE INPUT
+//  Inanc Gumus
+//
+// EXPECTED OUTPUT
+//  Your name is Inanc and your lastname is Gumus.
+// ---------------------------------------------------------
+
+func main() {
+	// BONUS: Use a variable for the format specifier
+}

07-printf/exercises/10-print-your-fullname/solution/main.go

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+// 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"
+	"os"
+)
+
+func main() {
+	// WARNING: This program will error
+	//          if you don't pass your name and lastname
+
+	name, lastname := os.Args[1], os.Args[2]
+
+	msg := "Your name is %s and your lastname is %s.\n"
+	fmt.Printf(msg, name, lastname)
+}