c++ code for bubble sort

#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]);
            }
        }
    }
}

void printArray(int arr[], int size) {
    for (int i=0; i < size; i++)
        std::cout << arr[i] << " ";
    std::cout << "\n";
}

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

    bubbleSort(arr, n);

    std::cout << "Sorted array: \n";
    printArray(arr, n);

    return 0;
}