int main (){
    // WARNING: this code is BUGGY - it is just for illustration purposes

    int* a = new int[7]{0, 6, 5, 3, 2, 4, 1};
    int* b = new int[7];
    int* c = b;
    
    // copy a into b using pointers
    for (int* p = a; p <= a+7; ++p) {
        *c++ = *p;
    }
    
    // cross-check with random access
    for (int i = 0; i <= 7; ++i) {
        if (a[i] != c[i]) {
            std::cout << "Oops, copy error...\n";
        }
    }
    return 0;   
}