package main

import "fmt"

func linked() (int, int, int) {

  s1 := []int{1, 2, 3, 4, 5}
  s2 := s1
  s3 := s1[:]
  s1[3] = 99
  return s1[3], s2[3], s3[3]

}

func noLink() (int, int) {

  s1 := []int{1, 2, 3, 4, 5}
  s2 := s1
  s1 = append(s1, 6)
  s1[3] = 99
  return s1[3], s2[3]

}

func capLinked() (int, int) {

  s1 := make([]int, 5, 10)
  s1[0], s1[1], s1[2], s1[3], s1[4] = 1, 2, 3, 4, 5
  s2 := s1
  s1 = append(s1, 6)
  s1[3] = 99
  return s1[3], s2[3]

}

func capNoLink() (int, int) {

  s1 := make([]int, 5, 10)
  s1[0], s1[1], s1[2], s1[3], s1[4] = 1, 2, 3, 4, 5
  s2 := s1
  s1 = append(s1, []int{10: 11}...)
  s1[3] = 99
  return s1[3], s2[3]

}

func copyNoLink() (int, int, int) {

  s1 := []int{1, 2, 3, 4, 5}
  s2 := make([]int, len(s1))
  copied := copy(s2, s1)
  s1[3] = 99
  return s1[3], s2[3], copied

}

func appendNoLink() (int, int) {

  s1 := []int{1, 2, 3, 4, 5}
  s2 := append([]int{}, s1...)
  s1[3] = 99
  return s1[3], s2[3]

}

func main() {

  l1, l2, l3 := linked()
  fmt.Println("Linked:         ", l1, l2, l3)
  nl1, nl2 := noLink()
  fmt.Println("No Link:        ", nl1, nl2)
  cl1, cl2 := capLinked()
  fmt.Println("Cap Linked:     ", cl1, cl2)
  cn1, cn2 := capNoLink()
  fmt.Println("Cap no Link:    ", cn1, cn2)
  copy1, copy2, copied := copyNoLink()
  fmt.Print("Copy No Link:    ", copy1, copy2)
  fmt.Printf(" (Number of elements copied: %v\n", copied)
  a1, a2 := appendNoLink()
  fmt.Println("Append No Link: ", a1, a2)

}