add: quiz and exercises to pointers

26-pointers/exercises/04-simplify/main.go

@@ -0,0 +1,34 @@
+// 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/
+//
+
+// ---------------------------------------------------------
+// EXERCISE: Simplify the code
+// HINT    : Remove the unnecessary pointer usages
+// ---------------------------------------------------------
+
+package main
+
+import "fmt"
+
+func main() {
+	var schools []map[int]string
+
+	schools = append(schools, make(map[int]string))
+	load(&schools[0], &([]string{"batman", "superman"}))
+
+	schools = append(schools, make(map[int]string))
+	load(&schools[1], &([]string{"spiderman", "wonder woman"}))
+
+	fmt.Println(schools[0])
+	fmt.Println(schools[1])
+}
+
+func load(m *map[int]string, students *[]string) {
+	for i, name := range *students {
+		(*m)[i+1] = name
+	}
+}

26-pointers/exercises/04-simplify/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"
+
+func main() {
+	schools := make([]map[int]string, 2)
+	for i := range schools {
+		schools[i] = make(map[int]string)
+	}
+
+	load(schools[0], []string{"batman", "superman"})
+	load(schools[1], []string{"spiderman", "wonder woman"})
+
+	fmt.Println(schools[0])
+	fmt.Println(schools[1])
+}
+
+func load(m map[int]string, students []string) {
+	for i, name := range students {
+		m[i+1] = name
+	}
+}