该法典是否造成记忆泄露:

int main(){

   int * a = new int[10];
   int * b  = new int[10];
   for(int i = 0 ; i < 10; i++)
   {
       a[i] = 1;
       b[i] = 1;
   }

   for(int i = 0 ; i < 10; i++)
   {
       a[i] = b[i]; //each a[i] is allocated 4 bytes on heap
                    //when we copy b[i] into a[i] do we loose 
                    //the reference to a[i] (hence a leak), 
                    //and replace that reference
                    //with a reference to a new value?
   }

   delete[] a;
   delete[] b;


}