/in/foo.cc: In function 'void dijkstra(int)':
/in/foo.cc:26:67: error: wrong number of template arguments (0, should be 1)
   26 |     priority_queue<pair<int, int>, vector<pair<int, int>>, greater<>> pq;
      |                                                                   ^
In file included from /usr/include/c++/12/bits/refwrap.h:39,
                 from /usr/include/c++/12/deque:65,
                 from /usr/include/c++/12/queue:60,
                 from /in/foo.cc:3:
/usr/include/c++/12/bits/stl_function.h:393:12: note: provided for 'template<class _Tp> struct std::greater'
  393 |     struct greater : public binary_function<_Tp, _Tp, bool>
      |            ^~~~~~~
/in/foo.cc:26:68: error: template argument 3 is invalid
   26 |     priority_queue<pair<int, int>, vector<pair<int, int>>, greater<>> pq;
      |                                                                    ^~
/in/foo.cc:28:8: error: request for member 'push' in 'pq', which is of non-class type 'int'
   28 |     pq.push({0, s});
      |        ^~~~
/in/foo.cc:29:16: error: request for member 'empty' in 'pq', which is of non-class type 'int'
   29 |     while (!pq.empty()) {
      |                ^~~~~
/in/foo.cc:30:20: error: request for member 'top' in 'pq', which is of non-class type 'int'
   30 |         int u = pq.top().second;
      |                    ^~~
/in/foo.cc:31:12: error: request for member 'pop' in 'pq', which is of non-class type 'int'
   31 |         pq.pop();
      |            ^~~
/in/foo.cc:38:20: error: request for member 'push' in 'pq', which is of non-class type 'int'
   38 |                 pq.push({d[v], v});
      |                    ^~~~