embaralha.go

embaralha.go

func main() {
	names := []string{"joao", "alex", "ze", "gleicon", "mane", "maria"}
	fmt.Printf("names : %v\n", names)
	shuffleList := names
	shuffle(shuffleList)
	fmt.Printf("Shuffled : %v\n", shuffleList)

}
func shuffle(arr []string) {
	rand.Seed(int64(time.Now().Nanosecond())) // no shuffling without this line

	/*
		for i := len(arr) - 1; i > 0; i-- {
			j := rand.Intn(i)
			arr[i], arr[j] = arr[j], arr[i]
		}
	*/

	for _, i := range rand.Perm(len(arr)) {
		joao := arr[i]
		fmt.Printf("embaralhado : %v\n", joao)
	}

}