Compilare: main.cpp: In function 'int BFS(int)': main.cpp:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(j = 0; j < adj[currentNode].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:83:12: warning: 'maxx' may be used uninitialized in this function [-Wmaybe-uninitialized] 83 | out << maxx; | ^~~~