Bubble Sort C++

#include <iostream>
using namespace std;


int main() {
    int A[100], n, i, k, j;
    int ct[100];

    cout << "n="; cin >> n;
    for (i = 0; i < n;i++) {
        A[i] = rand() % 10;
    }

    cout << "Vectorul Initial: {" ;
    for (i = 0; i < n; i++) {
        cout << A[i] << " ";
    }
    cout << "}";

    //contorizarea valorilor din vector
    for (i = 0; i < 10;i++) {
        ct[i] = 0;
    }
    for (i = 0; i < n; i++) {
        ct[A[i]]++;
    }

    // Completarea valorilor in vector
    i = 0;
    for (k = 0; k < 10;k++) {
        for (j = 1; j <= ct[k];j++) {
            A[i++] = k;
        }
    }

    cout << " Vectorul sortat: ";
    for (i = 0; i < n;i++) {
        cout << A[i] << " ";
    }


    system("pause");
}