Compilare: main.cpp: In function 'void BFS(int)': main.cpp:24:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i = 0; i <= adj[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:26:39: warning: 'vecin' may be used uninitialized [-Wmaybe-uninitialized] 26 | int vecin = adj[nod][vecin]; | ^ main.cpp:26:17: note: 'vecin' declared here 26 | int vecin = adj[nod][vecin]; | ^~~~~