Compilare: main.cpp: In function 'int main()': main.cpp:42:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for (int i=0; i<adj[nod].size(); i++) { | ~^~~~~~~~~~~~~~~~ main.cpp:69:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for (int i=0; i<adj[nod].size(); i++) { | ~^~~~~~~~~~~~~~~~ main.cpp:63:17: warning: unused variable 'distanta' [-Wunused-variable] 63 | int distanta = coada.top().first; | ^~~~~~~~