Write a cord to bubble sort a subarray in a array

void BubbleSort(int arr[], int start, int end) {
      for (int i = start; i < end - 1; i++) {
          for (int j = end - 1; j > i; j--) {
              if (arr[j] < arr[j - 1]) {
                  swap(arr[j], arr[j - 1]);
              }
          }
      }
}