Eroare de compilare: user.cpp:12: error: template argument 1 is invalid user.cpp:12: error: template argument 2 is invalid user.cpp:13: error: ‘>>’ should be ‘> >’ within a nested template argument list user.cpp: In function ‘void read()’: user.cpp:24: error: ‘V’ was not declared in this scope user.cpp: In function ‘void solve()’: user.cpp:44: error: ‘V’ was not declared in this scope user.cpp:54: error: ‘class std::priority_queue<std::pair<int, int>, std::vector<std::pair<int, int>, std::allocator<std::pair<int, int> > >, std::less<std::pair<int, int> > >’ has no member named ‘push_back’ user.cpp: At global scope: user.cpp:91: error: expected declaration before ‘}’ token