C++ Bubble sort array

bubble_sort.cpp

    const int n = 10;     //number of elements
    int arr[n];           //array of n elements
    int i,j;              //array indexes
    int temp;             //temporary variable for sorting
    srand(rand());
    cout << "Unsorted array:" << endl;
    for (i = 0; i < n; i++) {
        arr[i] = rand();
        cout << arr[i] << " ";
    }
    cout << endl;
    for (i = 0; i < n-1; i++) {
        for (j = i+1; j < n; j++) {
            if (arr[i] > arr[j]) {
               temp = arr[i];
               arr[i] = arr[j];
               arr[j] = temp;
            }
        }
    }
    cout << "Sorted array:" << endl;
    for (i = 0; i < n; i++) {
        cout << arr[i] << " ";
    }
    cout << endl;