/in/foo.cc: In function 'int main()':
/in/foo.cc:74:23: warning: format '%d' expects argument of type 'int', but argument 2 has type '__gnu_cxx::__alloc_traits<std::allocator<long long int> >::value_type {aka long long int}' [-Wformat=]
    printf("%d\n", d[i]);
                       ^