Golang : Generate random elements without repetition or duplicate

Problem :

How to generate a map with random elements without repetition or duplicate items in the map?

Solution :

Use the rand.Perm function to generate a map with random elements.

 package main

 import (
  "fmt"
  "math/rand"
 )

 func main() {
  fmt.Println(rand.Perm(16)[:16])
 }

Output :

[12 4 2 13 10 0 3 11 7 5 15 1 9 14 6 8]