Bob.code: In function ‘long long int Bob(std::vector<std::pair<int, int> >)’:
Bob.code:8:5: error: ‘vector’ was not declared in this scope
    8 |     vector<int> can;
      |     ^~~~~~
Bob.code:8:5: note: suggested alternatives:
In file included from /usr/include/c++/13/vector:66,
                 from /usr/include/c++/13/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:53,
                 from Bob.code:1:
/usr/include/c++/13/bits/stl_vector.h:425:11: note:   ‘std::vector’
  425 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
/usr/include/c++/13/vector:86:13: note:   ‘std::pmr::vector’
   86 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
Bob.code:8:12: error: expected primary-expression before ‘int’
    8 |     vector<int> can;
      |            ^~~
Bob.code:9:53: error: ‘can’ was not declared in this scope; did you mean ‘tan’?
    9 |     for (int i = 1; i <= 5000; ++i) if (deg[i] > 1) can.emplace_back(i);
      |                                                     ^~~
      |                                                     tan
Bob.code:10:9: error: ‘can’ was not declared in this scope; did you mean ‘tan’?
   10 |     if (can.size() == 1) return can[0] * can[0];
      |         ^~~
      |         tan