Compilare: main.cpp: In function 'void dijkstra()': main.cpp:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (int i = 0; i < fortarete.size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:55:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (int i = 0; i < lista_ad[nod.second].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~