int[] sort(int[] arr){

    int min, minIndex, temp;

    // 'start' is the point where 'unsorted' array begins
    for(int start = 0; start < arr.length - 1; start++){

      // Finding the minimum
      min = arr[start];
      minIndex = start;
      for(int i = start + 1; i < arr.length; i++){
        if(arr[i] < min){
          min = arr[i];
          minIndex = i;
        }
      }

      // Swap the minimum with the first element
      temp = min;
      arr[minIndex] = arr[start];
      arr[start] = temp;
    }

    return arr;
  }