Compilare: main.cpp: In function 'void dijkstra(int, int)': main.cpp:23:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for (j=0; j<v[i].size(); j++) | ~^~~~~~~~~~~~ main.cpp:27:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for (k=0; k<lista[nod].size(); k++) | ~^~~~~~~~~~~~~~~~~~