bubble sort function in c++

#include <iostream>

void swap(int &a, int &b) {
    int temp = a;
    a = b;
    b = temp;
}

void bubbleSort(int arr[], int n) {
    for (int i = 0; i < n-1; ++i) {
        for (int j = 0; j < n-i-1; ++j) {
            if (arr[j] > arr[j+1]) {
                swap(arr[j], arr[j+1]);
            }
        }
    }
}

int main() {
    int arr[] = {64, 34, 25, 12, 22, 11, 90};
    int n = sizeof(arr)/sizeof(arr[0]);

    std::cout << "Original array: ";
    for (int i = 0; i < n; ++i) {
        std::cout << arr[i] << " ";
    }

    bubbleSort(arr, n);

    std::cout << "\nSorted array: ";
    for (int i = 0; i < n; ++i) {
        std::cout << arr[i] << " ";
    }

    return 0;
}