Uniqify

    Go

    1. package main
    2.  
    3. import "fmt"
    4.  
    5. func uniqify(items *[]string) {
    6.     j := 0
    7.     for i, x := range *items {
    8.         if !seen[x] {
    9.             seen[x] = true
    10.             (*items)[j] = (*items)[i]
    11.             j++
    12.         }
    13.     *items = (*items)[:j]
    14. }
    15.  
    16. func main() {
    17.     items := []string{"B", "B", "E", "Q", "Q", "Q"}
    18.     uniqify(&items)
    19.     fmt.Println(items) // prints [B E Q]