Initial commit

14-arrays/exercises/00/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
+//  ?
+//
+// NOTE
+//  ?
+//
+// EXPECTED OUTPUT
+//  ?
+// ---------------------------------------------------------
+
+func main() {
+}

14-arrays/exercises/00/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
+
+func main() {
+}

14-arrays/exercises/xxx-lucky-number-unique-picker/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"
+	"math/rand"
+	"os"
+	"strconv"
+	"time"
+)
+
+const (
+	maxTurns = 5 // less is more difficult
+	usage    = `Welcome to the Lucky Number Game!
+
+The program will pick %d random numbers.
+Your mission is to guess one of those numbers.
+
+The greater your number is, harder it gets.
+
+Wanna play?
+`
+)
+
+func main() {
+	rand.Seed(time.Now().UnixNano())
+
+	args := os.Args[1:]
+
+	if len(args) != 1 {
+		fmt.Printf(usage, maxTurns)
+		return
+	}
+
+	guess, err := strconv.Atoi(args[0])
+	if err != nil {
+		fmt.Println("Not a number.")
+		return
+	}
+
+	if guess < 0 {
+		fmt.Println("Please pick a positive number.")
+		return
+	}
+
+	// This array will store the generated random numbers
+	var pickeds [maxTurns]int
+
+	for turn := 0; turn < maxTurns; turn++ {
+		var n int
+	pick:
+		for {
+			n = rand.Intn(guess + 1)
+			for _, v := range pickeds {
+				if n == v {
+					continue pick
+				}
+			}
+			break
+		}
+
+		pickeds[turn] = n
+
+		if n == guess {
+			fmt.Println("🎉  YOU WIN!")
+			goto pickeds
+		}
+	}
+
+	fmt.Println("☠️  YOU LOST... Try again?")
+
+pickeds:
+	fmt.Println("Computer has picked these:", pickeds)
+
+	// after this line the program automatically exits
+}