Compilare: main.cpp: In function 'int main()': main.cpp:34:13: warning: unused variable 'dist' [-Wunused-variable] 34 | int dist = -pq.top().first; | ^~~~ main.cpp:51:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for(int i=2; i<d.size(); i++) | ~^~~~~~~~~