Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:65:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for (int i=0; i<L[a].size(); i++) //pt fiecare vecin | ~^~~~~~~~~~~~