Compilare: main.cpp: In function 'void bfs(int)': main.cpp:24:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for (int i = 0; i < adiacenta[nod_start].size(); i++) //iau vecinii si execut pe ei bfs-ul, si retin in aux ordinea de executie, | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~