Цепочки в С++

char* brutfors(int n, int i){
    char* a=new char[n+1];
    a[n]='\0';
    n--;
 
    for(; n>=0; n--){
        switch(i%3){
            case 0: a[n]='A'; break;
            case 1: a[n]='B'; break;
            case 2: a[n]='C'; break;
        }
        i/=3;
    }
    return a;
}
 
int main()
{
    char*** h;
    h=new char**[5];
    h[0]=new char*[81];
    h[1]=new char*[243];
    h[2]=new char*[729];
    h[3]=new char*[2187];
    h[4]=new char*[6561];
 
    for (int i = 0; i < 81; i++) {h[0][i]=brutfors(4, i);}
    for (int i = 0; i < 243; i++) {h[1][i]=brutfors(5, i);}
    for (int i = 0; i < 729; i++) {h[2][i]=brutfors(6, i);}
    for (int i = 0; i < 2187; i++) {h[3][i]=brutfors(7, i);}
    for (int i = 0; i < 6561; i++) {h[4][i]=brutfors(8, i);}
}

int main(){
    int count20 = 20;
    for (string as = ""; as != "aaaaaa" && count20 != 0; as += "a")
        for (string bs = "b"; (as + bs).size() + 1 != 8 && count20 != 0; bs += "b")
        {
            cout << as + "c" + bs + "c" << endl;
            count20--;
        }
    for (string as = "b"; as != "bbbbbb" && count20 != 0; as += "b")
        for (string bs = "b"; (as + bs).size() + 1 != 8 && count20 != 0; bs += "b")
        {
            cout << as + "c" + bs + "c" << endl;
            count20--;
        }
    system("pause");
    return 0;
}