main.go

func (algorithm *algorithm) putRandomCandidateSolutions(dataPoints []point, amount int){
  for i := 0; i < amount; i++ {
    algorithm.candidateSolutions = append(algorithm.candidateSolutions,randomSolution(dataPoints))
  }

}

func randomSolution(dataPoints []point) []point {
  dpC := dataPoints
  //solution with start point
  solution := []point{dpC[0]}
  //remove start point so it cant be picked to visit
  dpC = append(dpC[:0],dpC[1:]...)
  //loop over the remaining points
  for i := 0; i < len(dpC); i++ {
    //grab random index from te dpC slice
    randomPoint := rand.Intn(len(dpC))
    //add the random point to the solution slice
    solution = append(solution, dpC[randomPoint])
    //remove it from the dpC slice so it cant be picked again
    dpC = append(dpC[:randomPoint], dpC[randomPoint+1:]...)
  }
  //append the start position back on to the slice so we end at the same position again
  solution = append(solution, solution[0]);
  fmt.Println(solution)
  return solution
}