How to create a memory leak in C++?

A memory leak occurs when you call new without calling a corresponding delete later. As illustrated in this sample code:

int main() {
    // OK
    int * p = new int;
    delete p; 

    // Memory leak
    int * q = new int;
    // no delete
}

1. Create pointer to object and allocate it on the heap
2. Don't delete it.
3. Repeat previous steps
4. ????
5. PROFIT