Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int i=0; i<v[frn.nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:102:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | for(int i=0; i<vizitat.size(); i++) | ~^~~~~~~~~~~~~~~